MediumCVE-2021-23336
Web Cache Poisoning (CVE-2021-23336)
Published Last modified Sources: CVE.org, Msrc Update Guide, OSV
What is affected, what to do
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server.
Update Python/cpython to version 3.6.13, Python/cpython to version 3.7.10, Python/cpython to version 3.8.8.
- Affected
- Python/cpython
eq 0..0 - Python/cpython
lt *..3.6.13 - Python/cpython
eq 3.7.0..3.7.0 - Python/cpython
lt *..3.7.10 - Python/cpython
eq 3.8.0..3.8.0 - Python/cpython
lt *..3.8.8 - Python/cpython
eq 3.9.0..3.9.0 - Python/cpython
lt *..3.9.2
- Python/cpython
- Fixed in
- Python/cpython
3.6.13 - Python/cpython
3.7.10 - Python/cpython
3.8.8 - Python/cpython
3.9.2
- Python/cpython
Not sure whether and how you are affected? Ask a question about this vulnerability
Metrics
5.9
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: NVD, CVSS v3
5.9
CVSS v3
Severity Medium on the scale from 0 to 10.
Source: CVE.org, Msrc Update Guide, OSV
40.7 %
EPSS score
Elevated — model estimates 10-50% exploitation likelihood.
Source: FIRST EPSS, percentile 98.7
Show all metrics
- Severity
- Medium
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 107.35 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
XIEM Effective CVSS
XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.
Read in glossary- 5.9 Methodology
CVSS v3
CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.
Read in glossary- 5.9
EPSS score
The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.
Read in glossary- 40.7 %
- Elevated — model estimates 10-50% exploitation likelihood.
EPSS percentile
The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.
Read in glossary- 98.7
- Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
- CISA assessment (SSVC)
- Exploitation: none known · not automatable · Technical impact: partial
- Source: CISA Vulnrichment, as of 17 December 2025
CWE
CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.
Read in glossary- CWE-444
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
Source: cvelistv5, NVD (NIST), Microsoft Security Update Guide, OSV (Open Source Vulnerabilities)
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| — | python/cpython |
|
|
| djangoproject | django |
|
|
| netapp | cloud_backup |
|
|
| netapp | inventory_collect_tool |
|
|
| netapp | ontap_select_deploy_administration_utility |
|
|
| netapp | snapcenter |
|
|
| oracle | communications_offline_mediation_controller |
|
|
| oracle | communications_pricing_design_center |
|
|
| oracle | enterprise_manager_ops_center |
|
|
| python | python |
|
|
Vendors and products
- Debian Debian Linux
- Djangoproject Django
- Fedora Project Infrastructure Fedora
- NetApp Intel(R) Processors
- NetApp NetApp ONTAP Select Deploy administration utility
- NetApp NetApp SnapCenter
- Oracle Communications Offline Mediation Controller
- Oracle Oracle Communications Pricing Design Center
- Oracle Oracle Enterprise Manager Ops Center
- Oracle Zfs Storage Appliance
- Python Software Foundation Python Software Foundation CPython
Affected operating systems
| Linux | debian | debian_linux | 9.0 |
| Other | fedoraproject | fedora | 32 |
| Other | fedoraproject | fedora | 33 |
| Other | fedoraproject | fedora | 34 |
| Other | oracle | zfs_storage_appliance | 8.8 |
Weakness classes (CWE)
CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Base
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
Entry at MITRE CWE-444
References & sources
- snyk.iovuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933advisory
- bugs.python.orgissue42967report
- snyk.ioblog/cache-poisoning-in-popular-open-source-packagesweb
- github.compython/cpython/pull/24297
- openwall.com[oss-security] 20210219 Django security releases: CVE-2021-23336: Web cache poisoning via ``django.utils.http.limited_parse_qsl()``Mailing list
- lists.debian.org[debian-lts-announce] 20210219 [SECURITY] [DLA 2569-1] python-django security updateMailing list
- lists.fedoraproject.orgFEDORA-2021-7547ad987fVendor advisory
- lists.fedoraproject.orgFEDORA-2021-f4fd9372c7Vendor advisory
- lists.fedoraproject.orgFEDORA-2021-3352c1c802Vendor advisory
- lists.fedoraproject.orgFEDORA-2021-7d3a9004e2Vendor advisory
- lists.apache.org[mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jarMailing list
- lists.fedoraproject.orgFEDORA-2021-907f3bacaeVendor advisory
- lists.fedoraproject.orgFEDORA-2021-7c1bb32d13Vendor advisory
- lists.fedoraproject.orgFEDORA-2021-b1843407caVendor advisory
- lists.fedoraproject.orgFEDORA-2021-2897f5366cVendor advisory
- lists.fedoraproject.orgFEDORA-2021-b326fcb83fVendor advisory
- lists.fedoraproject.orgFEDORA-2021-1bb399a5afVendor advisory
- lists.fedoraproject.orgFEDORA-2021-ef83e8525aVendor advisory
- lists.fedoraproject.orgFEDORA-2021-b76ede8f4dVendor advisory
- lists.fedoraproject.orgFEDORA-2021-309bc2e727Vendor advisory
Changes to this CVE
Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).
Record modifiedsnyk.io
New references:- http://www.openwall.com/lists/oss-security/2021/02/19/4
- http://www.openwall.com/lists/oss-security/2021/05/01/2
- https://github.com/python/cpython/pull/24297
- https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E
and 8 more references
Show 88 original changes
Individual changes of this event as published by NVD Type Action Before After Reference added —http://www.openwall.com/lists/oss-security/2021/02/19/4Reference added —http://www.openwall.com/lists/oss-security/2021/05/01/2Reference added —https://github.com/python/cpython/pull/24297Reference added —https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3EReference added —https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3EReference added —https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3EReference added —https://lists.debian.org/debian-lts-announce/2021/02/msg00030.htmlReference added —https://lists.debian.org/debian-lts-announce/2021/04/msg00005.htmlReference added —https://lists.debian.org/debian-lts-announce/2021/04/msg00015.htmlReference added —https://lists.debian.org/debian-lts-announce/2023/09/msg00022.htmlReference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/Reference added —https://security.gentoo.org/glsa/202104-04Reference added —https://security.netapp.com/advisory/ntap-20210326-0004/Reference added —https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/Reference added —https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933Reference added —https://www.oracle.com//security-alerts/cpujul2021.htmlReference added —https://www.oracle.com/security-alerts/cpuApr2021.htmlReference added —https://www.oracle.com/security-alerts/cpujan2022.htmlReference added —https://www.oracle.com/security-alerts/cpuoct2021.htmlReference removed http://www.openwall.com/lists/oss-security/2021/02/19/4—Reference removed http://www.openwall.com/lists/oss-security/2021/05/01/2—Reference removed https://github.com/python/cpython/pull/24297—Reference removed https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E—Reference removed https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3E—Reference removed https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E—Reference removed https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html—Reference removed https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html—Reference removed https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html—Reference removed https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/—Reference removed https://security.gentoo.org/glsa/202104-04—Reference removed https://security.netapp.com/advisory/ntap-20210326-0004/—Reference removed https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/—Reference removed https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933—Reference removed https://www.oracle.com//security-alerts/cpujul2021.html—Reference removed https://www.oracle.com/security-alerts/cpuApr2021.html—Reference removed https://www.oracle.com/security-alerts/cpujan2022.html—Reference removed https://www.oracle.com/security-alerts/cpuoct2021.html—Reference type removed http://www.openwall.com/lists/oss-security/2021/02/19/4 Types: Mailing List, Patch, Third Party Advisory—Reference type removed http://www.openwall.com/lists/oss-security/2021/05/01/2 Types: Mailing List, Third Party Advisory—Reference type removed https://github.com/python/cpython/pull/24297 Types: Patch, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html Types: Mailing List, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html Types: Mailing List, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html Types: Mailing List, Third Party Advisory—Reference type removed https://security.gentoo.org/glsa/202104-04 Types: Third Party Advisory—Reference type removed https://security.netapp.com/advisory/ntap-20210326-0004/ Types: Third Party Advisory—Reference type removed https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/ Types: Technical Description, Third Party Advisory—Reference type removed https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933 Types: Exploit, Third Party Advisory—Reference type removed https://www.oracle.com//security-alerts/cpujul2021.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpuApr2021.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpujan2022.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpuoct2021.html Types: Patch, Third Party Advisory—Source identifier: report@snyk.io
Record modifiedCVE Program
New references:- http://www.openwall.com/lists/oss-security/2021/02/19/4
- http://www.openwall.com/lists/oss-security/2021/05/01/2
- https://github.com/python/cpython/pull/24297
- https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E
and 8 more references
Show 88 original changes
Individual changes of this event as published by NVD Type Action Before After Reference added —http://www.openwall.com/lists/oss-security/2021/02/19/4Reference added —http://www.openwall.com/lists/oss-security/2021/05/01/2Reference added —https://github.com/python/cpython/pull/24297Reference added —https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3EReference added —https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3EReference added —https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3EReference added —https://lists.debian.org/debian-lts-announce/2021/02/msg00030.htmlReference added —https://lists.debian.org/debian-lts-announce/2021/04/msg00005.htmlReference added —https://lists.debian.org/debian-lts-announce/2021/04/msg00015.htmlReference added —https://lists.debian.org/debian-lts-announce/2023/09/msg00022.htmlReference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/Reference added —https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/Reference added —https://security.gentoo.org/glsa/202104-04Reference added —https://security.netapp.com/advisory/ntap-20210326-0004/Reference added —https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/Reference added —https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933Reference added —https://www.oracle.com//security-alerts/cpujul2021.htmlReference added —https://www.oracle.com/security-alerts/cpuApr2021.htmlReference added —https://www.oracle.com/security-alerts/cpujan2022.htmlReference added —https://www.oracle.com/security-alerts/cpuoct2021.htmlReference removed http://www.openwall.com/lists/oss-security/2021/02/19/4—Reference removed http://www.openwall.com/lists/oss-security/2021/05/01/2—Reference removed https://github.com/python/cpython/pull/24297—Reference removed https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E—Reference removed https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3E—Reference removed https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E—Reference removed https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html—Reference removed https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html—Reference removed https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html—Reference removed https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/—Reference removed https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/—Reference removed https://security.gentoo.org/glsa/202104-04—Reference removed https://security.netapp.com/advisory/ntap-20210326-0004/—Reference removed https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/—Reference removed https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933—Reference removed https://www.oracle.com//security-alerts/cpujul2021.html—Reference removed https://www.oracle.com/security-alerts/cpuApr2021.html—Reference removed https://www.oracle.com/security-alerts/cpujan2022.html—Reference removed https://www.oracle.com/security-alerts/cpuoct2021.html—Reference type removed http://www.openwall.com/lists/oss-security/2021/02/19/4 Types: Mailing List, Patch, Third Party Advisory—Reference type removed http://www.openwall.com/lists/oss-security/2021/05/01/2 Types: Mailing List, Third Party Advisory—Reference type removed https://github.com/python/cpython/pull/24297 Types: Patch, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html Types: Mailing List, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html Types: Mailing List, Third Party Advisory—Reference type removed https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html Types: Mailing List, Third Party Advisory—Reference type removed https://security.gentoo.org/glsa/202104-04 Types: Third Party Advisory—Reference type removed https://security.netapp.com/advisory/ntap-20210326-0004/ Types: Third Party Advisory—Reference type removed https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/ Types: Technical Description, Third Party Advisory—Reference type removed https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933 Types: Exploit, Third Party Advisory—Reference type removed https://www.oracle.com//security-alerts/cpujul2021.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpuApr2021.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpujan2022.html Types: Patch, Third Party Advisory—Reference type removed https://www.oracle.com/security-alerts/cpuoct2021.html Types: Patch, Third Party Advisory—Source identifier: af854a3a-2127-422b-91ae-364da2661108
Record modifiedSiemens ADP
Show 2 original changes
Individual changes of this event as published by NVD Type Action Before After Affected versions (publisher) added —New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2021/23xxx/CVE-2021-23336.json">CVE-2021-23336</a>Reference added —https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlSource identifier: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Embed badge
Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.
<a href="https://intel.neosec.eu/en/cve/CVE-2021-23336"><img src="https://intel.neosec.eu/badge/cve/CVE-2021-23336.svg?lang=en" alt="CVE-2021-23336 – NEOSEC Intel" height="20"></a>