Jenkins Script Security Plugin: Missing Auth Check Enables Classpath Enumeration
CVE-2026-42519 Published on April 29, 2026
A missing permission check in Jenkins Script Security Plugin 1399.ve6a_66547f6e1 and earlier allows attackers with Overall/Read permission to enumerate pending and approved Script Security classpaths.
Vulnerability Analysis
CVE-2026-42519 can be exploited 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 a small impact on confidentiality, a small impact on integrity and 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-2026-42519 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-42519
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Affected Versions
Jenkins Project Jenkins Script Security Plugin:- Before and including 1399.ve6a_66547f6e1 is affected.