{"cve":"CVE-2026-53435","nvd":{"published":"2026-06-10T14:16:36.440","modified":"2026-10-26T11:10:00.157","status":"Modified","description":"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 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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-502"],"references":["https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707","https://access.redhat.com/errata/RHSA-2026:60239","https://access.redhat.com/errata/RHSA-2026:60246","https://access.redhat.com/errata/RHSA-2026:60247","https://access.redhat.com/errata/RHSA-2026:60248"],"products":["jenkins:jenkins"],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-53435","score":0.53131,"percentile":0.98972,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-g2xq-2v27-4rh3","url":"https://osv.dev/vulnerability/GHSA-g2xq-2v27-4rh3","summary":"Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation","modified":"2026-09-10T03:50:49.529134709Z","packages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":["<2.555.3"],"fixed":["2.555.3"]},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.556 <2.568"],"fixed":["2.568"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}