Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.

Project Subscriptions

Vendors Products
Jenkins Subscribe
Jenkins Subscribe
Jenkins Project Subscribe
Jenkins Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-85h6-5m3v-gx37 Jenkins has a stored XSS vulnerability in node offline cause description
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 20 Feb 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins
Jenkins jenkins
CPEs cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
Vendors & Products Jenkins
Jenkins jenkins

Thu, 19 Feb 2026 10:30:00 +0000

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

Thu, 19 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Title org.jenkins-ci.main/jenkins-core: Jenkins: Stored Cross-site Scripting (XSS) via unescaped user-provided offline cause description
References

Wed, 18 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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


Wed, 18 Feb 2026 14:45:00 +0000

Type Values Removed Values Added
Description Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-02-18T14:56:27.973Z

Reserved: 2026-02-17T16:48:49.373Z

Link: CVE-2026-27099

cve-icon Vulnrichment

Updated: 2026-02-18T14:54:45.810Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-18T15:18:43.857

Modified: 2026-02-20T20:52:03.000

Link: CVE-2026-27099

cve-icon Redhat

Severity :

Publid Date: 2026-02-18T14:17:43Z

Links: CVE-2026-27099 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-19T10:19:46Z

Weaknesses