CVE-2026-42521

Name
CVE-2026-42521
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
jenkinsci-cert@googlegroups.com https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:jenkins:matrix_authorization_strategy:*:*:*:*:*:jenkins:*:* jenkins >= 2.1 < 3.2.10
cpe:2.3:a:jenkins:matrix_authorization_strategy:2.0:beta1:*:*:*:jenkins:*:* jenkins == None == 2.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
jenkins edge-community 2.555.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.541.3-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.541.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.541.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.528.3-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.516.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.479.1-r1 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.479.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.361.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.346.2-r1 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.346.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.332.4-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.332.3-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.332.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.332.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.319.3-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.319.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins edge-community 2.287-r0 None possibly vulnerable
jenkins edge-community 2.275-r0 None possibly vulnerable
jenkins edge-community 2.245-r0 None possibly vulnerable
jenkins edge-community 2.228-r0 None possibly vulnerable
jenkins 3.23-community 2.541.2-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
jenkins 3.23-community 2.516.1-r0 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable