Cross-site Scripting (XSS) Affecting jenkins-2.555 package, versions <2.555.3-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-JENKINS2555-17370837
  • published18 Jun 2026
  • disclosed10 Jun 2026

Introduced: 10 Jun 2026

CVE-2026-53441  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Minimos:latest jenkins-2.555 to version 2.555.3-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jenkins-2.555 package and not the jenkins-2.555 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Jenkins 2.483 through 2.567 (both inclusive), LTS 2.492.1 through 2.555.2 (both inclusive) does not escape the user-provided description of a generic offline cause that could be set through the POST config.xml API, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.

CVSS Base Scores

version 3.1