{"id":"CVE-2026-53435","title":"In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows t…","summary":"In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows t…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"adp","vendor":"Jenkins Project","product":"Jenkins","affected":["Jenkins (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-10T00:00:00+00:00"},"exploitAvailable":true,"published":"2026-06-10","updated":"2026-09-09","sourceUpdated":"2026-09-09T12:05:08.469Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53435","references":[{"url":"https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707","label":"Jenkins Security Advisory 2026-06-10"}],"tags":["cve.org","exploit-available"],"epss":0.53131,"epssPercentile":0.98931,"exploits":{"github":1,"githubRepos":["https://github.com/AmesianX/CVE-2026-53435"],"checkedAt":"2026-09-23T07:14:14.161Z"},"ingestedAt":"2026-09-09T13:09:45.303Z","slug":"CVE-2026-53435","body":"## Overview\n\nIn Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards.\nThis can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.\n\n## Affected\n\n- `Jenkins (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":71,"depthScoreParts":{"impact":48.4,"likelihood":10.6,"exploitation":12,"ransomware":0},"changes":[]}