{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42521","assignerOrgId":"39769cd5-e6e2-4dc8-927e-97b3aa056f5b","state":"PUBLISHED","assignerShortName":"jenkins","dateReserved":"2026-04-28T09:24:35.048Z","datePublished":"2026-04-29T13:31:30.608Z","dateUpdated":"2026-04-29T13:58:20.768Z"},"containers":{"cna":{"providerMetadata":{"orgId":"39769cd5-e6e2-4dc8-927e-97b3aa056f5b","shortName":"jenkins","dateUpdated":"2026-04-29T13:31:30.608Z"},"affected":[{"vendor":"Jenkins Project","product":"Jenkins Matrix Authorization Strategy Plugin","versions":[{"version":"2.0-beta-1","versionType":"maven","lessThanOrEqual":"3.2.9","status":"affected"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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."}],"references":[{"name":"Jenkins Security Advisory 2026-04-29","url":"https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676","tags":["vendor-advisory"]}]},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-502","lang":"en","description":"CWE-502 Deserialization of Untrusted Data"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-04-29T13:58:15.842577Z","id":"CVE-2026-42521","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-29T13:58:20.768Z"}}]}}