{"id":"CVE-2026-84646","title":"In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.","summary":"In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-502"],"vendor":"jenkins","product":"jenkins","affected":["jenkins < 2.568.3","jenkins < 2.580"],"patched":["jenkins 2.580"],"published":"2026-09-02","updated":"2026-09-11","sourceUpdated":"2026-09-11T21:15:45.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84646","references":[{"url":"https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3908","label":"jenkinsci-cert@googlegroups.com"}],"tags":["nvd"],"epss":0.00276,"epssPercentile":0.20235,"ingestedAt":"2026-09-12T00:03:49.031Z","slug":"CVE-2026-84646","body":"## Overview\n\nIn Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.\n\n## Affected\n\n- `jenkins < 2.568.3`\n- `jenkins < 2.580`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `jenkins 2.580`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}