CVE Catalog

CVE-2026-42521

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.25%

16th percentile - higher than 16% of all known CVEs

Summary

Jenkins Matrix Authorization Strategy Plugin versions 2.0-beta-1 through 3.2.9 invokes parameterless constructors of classes specified in configuration when deserializing inheritance strategies, without restricting classes. Attackers with Item/Configure permission can instantiate arbitrary types, potentially leading to information disclosure or other impacts.

Risk Assessment

Potential instantiation of arbitrary classes by an attacker with configuration permission may lead to information disclosure or other impacts depending on available classes.

Recommendation

Update the plugin to a fixed version or restrict Item/Configure permissions. Monitor inheritance strategy configuration.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS