Description
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the system log viewer does not escape log record metadata (source, level, and timestamp) resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers in control of agent processes.
Published: 2026-09-02
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 03 Sep 2026 10:15:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unescaped Log Metadata in Jenkins Prior to 2.580

Thu, 03 Sep 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins
Vendors & Products Jenkins Project
Jenkins Project jenkins

Thu, 03 Sep 2026 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 02 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the system log viewer does not escape log record metadata (source, level, and timestamp) resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers in control of agent processes.
References

Subscriptions

Jenkins Project Jenkins
cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-09-02T17:39:13.492Z

Reserved: 2026-09-01T21:55:27.033Z

Link: CVE-2026-84648

cve-icon Vulnrichment

Updated: 2026-09-02T17:39:06.690Z

cve-icon NVD

Status : Received

Published: 2026-09-02T16:17:29.527

Modified: 2026-09-02T18:21:30.560

Link: CVE-2026-84648

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T10:00:12Z

Weaknesses