{"id":"CVE-2026-70426","state":"PUBLISHED","title":"In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied ","description":"In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied to classes resolved via a fallback path in the Remoting deserialization implementation, allowing agent processes, code running on agents, and attackers with Agent/Connect permission to bypass the JEP-200 deserialization filter for classes on the Jenkins core classpath.","publishedAt":"2026-08-05T17:40:27.071Z","updatedAt":"2026-08-06T03:55:46.082Z","severity":{"score":9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"jenkins","products":["Jenkins Project Jenkins","Jenkins Project Remoting"],"affected":[{"vendor":"Jenkins Project","product":"Jenkins","defaultStatus":"affected","versions":[{"version":"2.576","status":"unaffected","lessThan":"*","versionType":"maven"},{"version":"2.568.2","status":"unaffected","lessThan":"2.568.*","versionType":"maven"}]},{"vendor":"Jenkins Project","product":"Remoting","defaultStatus":"affected","versions":[{"version":"3385.vf1123fb_515da_","status":"unaffected","lessThan":"*","versionType":"maven"},{"version":"3355.3357.v931d3c992987","status":"unaffected","lessThan":"3355.*","versionType":"maven"}]}],"references":["https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3911"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/70xxx/CVE-2026-70426.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-70426","state":"PUBLISHED","datePublished":"2026-08-05T17:40:27.071Z","dateUpdated":"2026-08-06T03:55:46.082Z","assignerShortName":"jenkins","assignerOrgId":"39769cd5-e6e2-4dc8-927e-97b3aa056f5b","dateReserved":"2026-08-04T14:13:20.602Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied to classes resolved via a fallback path in the Remoting deserialization implementation, allowing agent processes, code running on agents, and attackers with Agent/Connect permission to bypass the JEP-200 deserialization filter for classes on the Jenkins core classpath."}],"affected":[{"vendor":"Jenkins Project","product":"Jenkins","defaultStatus":"affected","versions":[{"version":"2.576","status":"unaffected","lessThan":"*","versionType":"maven"},{"version":"2.568.2","status":"unaffected","lessThan":"2.568.*","versionType":"maven"}]},{"vendor":"Jenkins Project","product":"Remoting","defaultStatus":"affected","versions":[{"version":"3385.vf1123fb_515da_","status":"unaffected","lessThan":"*","versionType":"maven"},{"version":"3355.3357.v931d3c992987","status":"unaffected","lessThan":"3355.*","versionType":"maven"}]}],"references":[{"url":"https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3911","name":"Jenkins Security Advisory 2026-08-05","tags":["vendor-advisory"]}],"providerMetadata":{"shortName":"jenkins","orgId":"39769cd5-e6e2-4dc8-927e-97b3aa056f5b","dateUpdated":"2026-08-05T17:40:27.071Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":9,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-70426"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","type":"CWE","lang":"en","description":"CWE-502 Deserialization of Untrusted Data"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-06T03:55:46.082Z"}}]}}}