HighCVE-2026-32285

Denial of service in github.com/buger/jsonparser (CVE-2026-32285)

Published 26.03.2026Last modified 09.09.2026Sources: Red Hat, BSI, OSV, CVE.org

What is affected, what to do

A flaw was found in github.com/buger/jsonparser. The Delete function, when processing malformed JSON input, fails to properly validate offsets.

Update Github.com/buger/jsonparser to version 1.1.2.

Affected: Github.com/buger/jsonparser lt *..1.1.2
Fixed in: Github.com/buger/jsonparser 1.1.2

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: Red Hat, BSI, OSV, CVE.org

0.8 %

EPSS score

Low — model estimates < 1% exploitation likelihood.

Source: FIRST EPSS, percentile 55.9

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: 77.98 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: 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: 0.8 %; Low — model estimates < 1% 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: 55.9; High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
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: 26.03.2026
CISA assessment (SSVC): Exploitation: proof of concept · automatable · Technical impact: partial; Source: CISA Vulnrichment, as of 30 March 2026

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

A flaw was found in github.com/buger/jsonparser. The Delete function, when processing malformed JSON input, fails to properly validate offsets. This vulnerability can lead to a negative slice index and a runtime panic, allowing a remote attacker to cause a denial of service (DoS) by providing specially crafted JSON data.

Source: redhat_csaf, BSI WID Portal, BSI CSAF, OSV (Open Source Vulnerabilities), NVD (NIST), CVE.org (MITRE), cvelistv5

Affected products

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

Affected products
		Affected versions	Fixed in
github.com/buger/jsonparser	github.com/buger/jsonparser	`< 1.1.2`	`1.1.2`
jsonparser_project	jsonparser	`< 1.1.2`	`1.1.2`
Red Hat	Enterprise Linux	`Hardened Images RPMs` `9 Multicluster Engine for Kubernetes 2.8.6`	— —
Red Hat	Enterprise Linux Multicluster Global Hub	`< 1.5.4`	`1.5.4`
go	github.com/buger/jsonparser	`—`	—

Vendors and products

References & sources

github.combuger/jsonparser/issues/275report
github.comgolang/vulndb/issues/4514report
pkg.go.devvuln/GO-2026-4514
securityinfinity.comresearch/buger-jsonparser-negative-slice-panic-dos-2026Exploit
access.redhat.comsecurity/cve/CVE-2026-32285Vulnerability database, x_refsource_REDHAT
bugzilla.redhat.comRHBZ#2451846Issue tracking, x_refsource_REDHAT
security.access.redhat.comdata/csaf/v2/vex/2026/cve-2026-32285.jsonx_sadp-csaf-vex
access.redhat.comerrata/RHSA-2026:34364Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:22423Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:22347Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:36882Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:13548Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:7191Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:35111Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:9385Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:21769Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:23345Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:19099Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:17121Vendor advisory, x_refsource_REDHAT
access.redhat.comerrata/RHSA-2026:17123Vendor advisory, x_refsource_REDHAT

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).

09.09.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/32xxx/CVE-2026-32285.json">CVE-2026-32285</a>

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

07.09.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/32xxx/CVE-2026-32285.json">CVE-2026-32285</a>

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

31.08.2026Record modifiedgolang.org

New references:

Show 9 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://github.com/buger/jsonparser/issues/275
Reference	added	—	https://github.com/golang/vulndb/issues/4514
Reference	added	—	https://pkg.go.dev/vuln/GO-2026-4514
Reference	removed	https://github.com/buger/jsonparser/issues/275	—
Reference	removed	https://github.com/golang/vulndb/issues/4514	—
Reference	removed	https://pkg.go.dev/vuln/GO-2026-4514	—
Reference type	removed	https://github.com/buger/jsonparser/issues/275 Types: Issue Tracking, Third Party Advisory	—
Reference type	removed	https://github.com/golang/vulndb/issues/4514 Types: Issue Tracking, Third Party Advisory	—
Reference type	removed	https://pkg.go.dev/vuln/GO-2026-4514 Types: Third Party Advisory	—

Source identifier: security@golang.org

31.08.2026Record modifiedCISA ADP

New references:

https://securityinfinity.com/research/buger-jsonparser-negative-slice-panic-dos-2026

Show 3 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://securityinfinity.com/research/buger-jsonparser-negative-slice-panic-dos-2026
Reference	removed	https://securityinfinity.com/research/buger-jsonparser-negative-slice-panic-dos-2026	—
Reference type	removed	https://securityinfinity.com/research/buger-jsonparser-negative-slice-panic-dos-2026 Types: Exploit, Third Party Advisory	—

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

31.08.2026Record modifiedRed Hat ADP

New references:

and 8 more references

Show 34 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/32xxx/CVE-2026-32285.json">CVE-2026-32285</a>
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:13548
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:17121
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:17123
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:19099
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:21769
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:22347
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:22423
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:23345
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:34364
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:35111
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:36882
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:61314
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:7191
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:9385
Reference	added	—	https://access.redhat.com/security/cve/CVE-2026-32285
Reference	added	—	https://bugzilla.redhat.com/show_bug.cgi?id=2451846
Reference	added	—	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32285.json
Reference	removed	https://access.redhat.com/errata/RHSA-2026:13548	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:17121	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:17123	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:19099	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:21769	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:22347	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:22423	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:23345	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:34364	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:35111	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:36882	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:7191	—
Reference	removed	https://access.redhat.com/errata/RHSA-2026:9385	—
Reference	removed	https://access.redhat.com/security/cve/CVE-2026-32285	—
Reference	removed	https://bugzilla.redhat.com/show_bug.cgi?id=2451846	—
Reference	removed	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32285.json	—

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Show 14 older changes

25.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift, Red Hat OpenShift GitOps, Logging Subsystem for Red Hat OpenShift 6.4 (+14)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

24.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.10, multicluster engine for Kubernetes 2.8 (+28)	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

20.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.10, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

19.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

10.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

05.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

04.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

03.08.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

27.07.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

23.07.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

21.07.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

20.07.2026Record modifiedRed Hat ADP

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.10, multicluster engine for Kubernetes 2.8 (+28)	Logging Subsystem for Red Hat OpenShift 6.4, multicluster engine for Kubernetes 2.1, multicluster engine for Kubernetes 2.8 (+28)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

09.07.2026Record modifiedRed Hat ADP

New references:

https://access.redhat.com/errata/RHSA-2026:36882

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:36882
Affected versions (publisher)	changed	Logging Subsystem for Red Hat OpenShift 6.4, Multicluster Global Hub 1.3.4, Multicluster Global Hub 1.4.5 (+13)	Logging Subsystem for Red Hat OpenShift 6.4, Multicluster Global Hub 1.3.4, Multicluster Global Hub 1.4.5 (+14)

Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

06.07.2026Record modifiedRed Hat ADP
New references:
- https://access.redhat.com/errata/RHSA-2026:35111
Show the original change
Individual changes of this event as published by NVD
Type Action Before After
Reference added
—
https://access.redhat.com/errata/RHSA-2026:35111
Source identifier: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:35111

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<a href="https://intel.neosec.eu/en/cve/CVE-2026-32285"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-32285.svg?lang=en" alt="CVE-2026-32285 – NEOSEC Intel" height="20"></a>