Jenkins: Stored XSS vulnerability in node offline cause description (CVE-2026-53441) | HOL Guard CVE

High · CVSS 8.0CVE-2026-53441GHSA-93QH-VWRM-C5PW

Jenkins: Stored XSS vulnerability in node offline cause description

Answer in brief

CVE-2026-53441 records a High severity (CVSS 8.0) vulnerability in Jenkins: Stored XSS vulnerability in node offline cause description. The current sources do not mark it as known exploited. The current feed maps org.jenkins-ci.main:jenkins-core (maven), org.jenkins-ci.main:jenkins-core (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 10, 2026Updated Sep 10, 2026Source checked Sep 17, 2026First seen by HOL Jun 19, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.0
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps org.jenkins-ci.main:jenkins-core (maven), org.jenkins-ci.main:jenkins-core (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
org.jenkins-ci.main:jenkins-coremaven	>=2.483,<=2.567	2.568
org.jenkins-ci.main:jenkins-coremaven	>=2.483 <2.568	2.568

Recommended response

Check inventory. Check lockfiles and deployed manifests for org.jenkins-ci.main:jenkins-core, org.jenkins-ci.main:jenkins-core.
Review the reported fix. Update org.jenkins-ci.main:jenkins-core to 2.568; org.jenkins-ci.main:jenkins-core to 2.568 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 10, 2026
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Jun 19, 2026

Sources and claim methodology

Upstream source description

Jenkins 2.483 through 2.567 (both inclusive), LTS 2.492.1 through 2.555.2 (both inclusive) does not escape the user-provided description of a generic offline cause that could be set through the `POST config.xml` API, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.

Quoted source text, attributed separately from HOL analysis.