CVE-2026-27099 | THREATINT

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.

PUBLISHED Reserved 2026-02-17 | Published 2026-02-18 | Updated 2026-02-18 | Assigner jenkins

Product status

Default status

affected

Any version before 2.483

unaffected

2.551 (maven) before *

unaffected

2.541.2 (maven) before 2.541.*

unaffected

References

www.jenkins.io/security/advisory/2026-02-18/ (Jenkins Security Advisory 2026-02-18) vendor-advisory

cve.org (CVE-2026-27099)

nvd.nist.gov (CVE-2026-27099)

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