HighCVE-2022-34169

    Apache Tomcat: Incorrect Conversion between Numeric Types (CVE-2022-34169)

    Published Sources: BSI

    What is affected, what to do

    The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.

    An exploit is publicly available. Update tomcat to version 10.1.58, jackson-databind to version 2.18.8, Tomcat to version 10.1.57.

    Affected
    • Apache Xalan-J lte Xalan-J..2.7.2

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    7.5

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    7.5

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: BSI

    81.8 %

    EPSS score

    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.

    Source: FIRST EPSS, percentile 99.64

    Show all metrics
    Severity
    High
    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
    68.06 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
    PoC (publicly reported)
    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
    7.5 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
    7.5
    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
    81.8 %
    High — model estimates ≥ 50% chance of real-world exploitation within 30 days.
    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
    99.64
    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 · automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 20 May 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-681

    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
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    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 Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode. Users are recommended to update to version 2.7.3 or later. Note: Java runtimes (such as OpenJDK) include repackaged copies of Xalan.

    Source: BSI WID Portal

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    Apache Software FoundationApache Tomcat
    • 10.1.0-M1 – ≤ 10.1.57
    • 11.0.0-M1 – ≤ 11.0.24
    • 7.0.0 – ≤ 7.0.109
    • 8.5.0 – ≤ 8.5.100
    • 9.0.0.M1 – ≤ 9.0.120
    • —
    • —
    • —
    • —
    • —
    Apache Software FoundationApache Xalan-J
    • Xalan-J – ≤ 2.7.2
    • —
    FasterXMLjackson-databind
    • ≥ 2.10.0, < 2.18.8
    • —
    Oracle CorporationOracle Agile Engineering Data Management
    • 6.2.1
    • —
    Oracle CorporationOracle Agile PLM
    • 2.6
    • 9.3.6
    • —
    • —
    Oracle CorporationOracle Agile PLM MCAD Connector
    • 3.6
    • —
    Oracle CorporationOracle Agile Product Lifecycle Management for Process
    • 6.2.4
    • —
    Oracle CorporationOracle Demand Planning
    • 12.1
    • 12.2
    • —
    • —
    Oracle CorporationOracle Product Lifecycle Analytics
    • 3.6.1
    • —
    apachetomcat
    • 10.1.0 – < 10.1.58
    • 11.0.0 – < 11.0.25
    • 7.0.0 – ≤ 7.0.109
    • 8.5.0 – < 9.0.121
    • 10.1.58
    • 11.0.25
    • —
    • 9.0.121
    apachexalan-java
    • ≤ 2.7.2
    • —
    azulzulu
    • 11.56
    • 13.48
    • 15.40
    • 17.34
    • 18.30
    • 6.47
    • 7.54
    • 8.62
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    • —
    fasterxmljackson-databind
    • 2.10.0 – < 2.18.8
    • 2.19.0 – < 2.21.4
    • 3.0.0 – < 3.1.4
    • 2.18.8
    • 2.21.4
    • 3.1.4
    netapp7-mode_transition_tool
    • —
    • —
    netappactive_iq_unified_manager
    • —
    • —
    netappcloud_insights_acquisition_unit
    • —
    • —
    netappcloud_secure_agent
    • —
    • —
    netapphci_compute_node
    • —
    • —
    netapphci_management_node
    • —
    • —
    netapponcommand_insight
    • —
    • —
    netappsolidfire
    • —
    • —
    oraclegraalvm
    • 20.3.6
    • 21.3.2
    • 22.1.0
    • —
    • —
    • —
    oraclejdk
    • 11.0.15.1
    • 1.7.0
    • 17.0.3.1
    • 1.8.0
    • 18.0.1.1
    • —
    • —
    • —
    • —
    • —
    oraclejre
    • 11.0.15.1
    • —
    From bundled advisories, not CVE-specific (43)

    Product list of a bundled advisory that does not state which product this CVE affects.

    Products from bundled advisories
    Affected versionsFixed in
    —jackson-databind (FasterXML Jackson, Java)
    • com.fasterxml.jackson.core:jackson-databind 2.10.0 - 2.18.11
    • com.fasterxml.jackson.core:jackson-databind 2.19.0 - 2.21.7
    • com.fasterxml.jackson.core:jackson-databind 2.22.0 - 2.22.3
    • tools.jackson.core:jackson-databind 3.0.0 - 3.1.7
    • tools.jackson.core:jackson-databind 3.2.0 - 3.2.3
    • 2.18.12
    • 2.21.8
    • 2.22.4
    • 3.1.8
    • 3.2.4
    AtlassianBamboo Data Center LTS
    • < 10.2.22
    • < 10.2.23
    • < 12.1.10
    • < 12.1.11
    • 10.2.22
    • 10.2.23
    • 12.1.10
    • 12.1.11
    AtlassianBamboo LTS
    • < 10.2.24
    • < 12.1.12
    • 10.2.24
    • 12.1.12
    AtlassianBitbucket
    • < 10.5.1
    • 10.5.1
    AtlassianBitbucket Data Center
    • < 10.4.2
    • < 10.4.3
    • 10.4.2
    • 10.4.3
    AtlassianBitbucket Data Center LTS
    • < 10.2.6
    • < 10.2.7
    • < 9.4.23
    • < 9.4.24
    • 10.2.6
    • 10.2.7
    • 9.4.23
    • 9.4.24
    AtlassianBitbucket LTS
    • < 10.2.8
    • < 9.4.26
    • 10.2.8
    • 9.4.26
    AtlassianConfluence
    • < 11.0.0
    • 11.0.0
    AtlassianConfluence Data Center LTS
    • < 10.2.15
    • < 10.2.17
    • < 10.2.18
    • < 9.2.23
    • < 9.2.24
    • < 9.2.25
    • 10.2.15
    • 10.2.17
    • 10.2.18
    • 9.2.23
    • 9.2.24
    • 9.2.25
    AtlassianConfluence LTS
    • < 10.2.19
    • < 9.2.26
    • 10.2.19
    • 9.2.26
    AtlassianCrucible
    • < 4.9.13
    • < 4.9.14
    • < 4.9.15
    • 4.9.13
    • 4.9.14
    • 4.9.15
    AtlassianFisheye
    • < 4.9.13
    • < 4.9.14
    • < 4.9.15
    • 4.9.13
    • 4.9.14
    • 4.9.15
    AtlassianJira Data Center LTS
    • < 10.3.24
    • < 10.3.25
    • < 11.3.10
    • < 11.3.11
    • 10.3.24
    • 10.3.25
    • 11.3.10
    • 11.3.11
    AtlassianJira LTS
    • < 10.3.26
    • < 11.3.12
    • 10.3.26
    • 11.3.12
    AtlassianJira Service Management Data Center LTS
    • < 10.3.25
    • < 11.3.11
    • 10.3.25
    • 11.3.11

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebianbcelbullseye
    Linuxdebiandebian_linux10.0
    Linuxdebiandebian_linux11.0
    Linuxdebianopenjdk-11bullseye
    Linuxdebianopenjdk-11buster
    Linuxdebianopenjdk-17bullseye
    Otherfedoraprojectfedora35
    Otherfedoraprojectfedora36

    Weakness classes (CWE)

    • CWE-681Incorrect Conversion between Numeric Types

      Base

      When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.

      Entry at MITRE CWE-681

    Public exploit references

    Publicly reported proof-of-concepts, exploit modules and detection templates for this vulnerability. NEOSEC links to the original sources only and does not provide any exploit code.

    Public exploit references
    Packet StormXalan J XSLTC Integer Truncation (opens in a new tab)packetstormsecurity.comPoC (publicly reported)reported, not verified—

    References & sources

    • oracle.comOracle AdvisoryVendor advisory
    • lists.apache.orgthread/8robqo76q0osxgw0b5lcwgz0hcf9h4zcVendor advisory
    • openwall.comlists/oss-security/2026/08/26/8
    • NVD (NIST)vuln/detail/CVE-2026-68569web
    • github.comFasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c…web, x_refsource_CONFIRM, Exploit, Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-54512advisory
    • github.comFasterXML/jackson-databind/issues/5988web, x_refsource_MISC, Issue tracking, Patch
    • github.comFasterXML/jackson-databind/commit/434d6c511de7fdd9872f29157aafb…web, x_refsource_MISC, Patch
    • github.comFasterXML/jackson-databindpackage
    • pwn.watchpwn.watch: jackson-databind: PolymorphicTypeValidator bypass via generic type arguments allows arbitrary class instantiation (CVE-2026-110879)pwn-watch
    • github.comGHSA-m8xf-2cr7-77ph: PolymorphicTypeValidator bypass via generic type arguments and array element types allows arbitrary class instantiation (CVE-2026-110879)pwn-watch
    • NVD (NIST)NVD: CVE-2026-110879 (CVSS 3.1 9.8 critical, CWE-502, from the CNA)pwn-watch
    • NVD (NIST)vuln/detail/CVE-2022-34169advisory
    • xalan.apache.orgweb
    • oracle.comsecurity-alerts/cpujul2022.htmlweb, Patch, Third-party advisory
    • debian.orgDSA-5256web, Vendor advisory, Third-party advisory
    • debian.orgDSA-5192web, Vendor advisory, Third-party advisory
    • debian.orgDSA-5188web, Vendor advisory, Third-party advisory
    • security.netapp.comadvisory/ntap-20240621-0006web
    • security.netapp.comadvisory/ntap-20220729-0009web

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    Badge preview for CVE-2022-34169
    <a href="https://intel.neosec.eu/en/cve/CVE-2022-34169"><img src="https://intel.neosec.eu/badge/cve/CVE-2022-34169.svg?lang=en" alt="CVE-2022-34169 – NEOSEC Intel" height="20"></a>