{"action":"Upgrade org.jenkins-ci.plugins:matrix-auth to 3.2.10 or later.","affected":[{"fixed":"3.2.10","introduced":"2.0-beta-1"}],"component":"org.jenkins-ci.plugins:matrix-auth","cve_ids":["CVE-2026-42521"],"ecosystem":"Maven","epss":0.00246,"exploited":false,"fixed_versions":["3.2.10"],"ghsa_id":"GHSA-jp9r-mmhw-vff3","id":"tcs_01M5N93BRPHCSA4QSTYCMA7FWP","modified_at":"2026-09-10T03:50:44.624913Z","published_at":"2026-04-29T15:30:38Z","references":["https://osv.dev/vulnerability/GHSA-jp9r-mmhw-vff3","https://nvd.nist.gov/vuln/detail/CVE-2026-42521","https://github.com/jenkinsci/matrix-auth-plugin","https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-jp9r-mmhw-vff3","url":"https://osv.dev/vulnerability/GHSA-jp9r-mmhw-vff3"}],"summary":"Jenkins Matrix Authorization Strategy Plugin: Unsafe deserialization allows invocation of parameterless constructors"}