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VULNERABILITIES

CVE-2026-84648 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3967 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CISA-ADP

Affected Products

ProductVersions
jenkins jenkins
< 2.568.3
< 2.580

CPE

  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-84648
NVD Published Date:
Sep 2, 2026
NVD Last Modified:
Sep 11, 2026
Source:
[email protected]
CVE-2026-84648 Details - Not Deferred