CVE-2026-42521 — Jenkins Project / Jenkins Matrix Authorization Strategy Plugin

Description (CNA)

Jenkins Matrix Authorization Strategy Plugin 2.0-beta-1 through 3.2.9 (both inclusive) invokes parameterless constructors of classes specified in configuration when deserializing inheritance strategies, without restricting the classes that can be instantiated, allowing attackers with Item/Configure permission to instantiate arbitrary types, which may lead to information disclosure or other impacts depending on the classes available on the classpath.

Affected (CNA)

Vendor / product	Versions
Jenkins Project / Jenkins Matrix Authorization Strategy Plugin	affected 2.0-beta-1 through 3.2.9

CWE

No CWE identifiers supplied.

References

https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.