Jenkins LTS 2.555.2: missing perm check cancels unauthorized queue items
CVE-2026-53438 Published on June 10, 2026
A missing permission check in Jenkins 2.567 and earlier, LTS 2.555.2 and earlier allows attackers with Item/Cancel permission, but lacking Item/Read permission, to cancel queue items they do not have permission to view.
Vulnerability Analysis
CVE-2026-53438 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-53438 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-53438
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Affected Versions
Jenkins Project Jenkins:- Version 2.568 and below * is unaffected.
- Version 2.555.3 and below 2.555.* is unaffected.