CVE-2026-27099

HighCVSS 8.0/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.0/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published: Feb 18, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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