Bug 2487533 (CVE-2026-53441)

Summary: CVE-2026-53441 jenkins: Jenkins: Stored Cross-Site Scripting (XSS) via unescaped user-provided description
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Jenkins. This vulnerability, a stored cross-site scripting (XSS) issue, allows attackers with Agent/Configure permission to inject malicious scripts into the user-provided description of a generic offline cause. When other users view this description, the injected script can execute in their browser, potentially leading to information disclosure or unauthorized actions.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-10 14:01:30 UTC
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.