CVE-2026-27099

ADVISORY - github

Summary

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.

EPSS Score⁠: 0.00041 (0.125)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-79⁠

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADVISORY - github

CWE-79⁠

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADVISORY - redhat

CWE-79⁠

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Impacted images

Advisories

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