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.

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Fixes

Solution

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Workaround

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History

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

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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 : Received

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

Modified: 2026-02-18T16:22:33.550

Link: CVE-2026-27099

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses