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Security Advisories

CVE-2026-27099

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-27099

Severity

8.0

High

CVSS V3

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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

  • https://nvd.nist.gov/vuln/detail/CVE-2026-27099
  • https://github.com/advisories/GHSA-85h6-5m3v-gx37
  • https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3669

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