{"id":"CVE-2021-27017","aliases":["EUVD-2021-13790","GHSA-4wqj-x526-3j69"],"status":"published","title":"Deserialization of untrusted data","description":"Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.","severity":{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00551,"percentile":0.46521,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2025-02-07T19:28:45Z","modified":"2026-06-17T03:44:08Z","products":[{"vendor":"puppetpu","product":"puppet agent"}],"references":[{"url":"https://www.puppet.com/security/cve/cve-2021-27017-deserialization-untrusted-data"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27017"},{"url":"https://github.com/advisories/GHSA-4wqj-x526-3j69"}],"sources":{"cve":[{"id":"CVE-2021-27017","title":"Deserialization of untrusted data","description":"Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.","status":"published","published":"2025-02-07T19:28:45.531Z","modified":"2025-02-07T19:46:31.091Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-13790","description":"Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.","status":"published","published":"2025-02-07T19:28:45Z","modified":"2025-02-07T19:46:31Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:01.828429Z"}],"ghsa":[{"id":"GHSA-4wqj-x526-3j69","title":"Utilization of a module presented a security risk by allowing the deserialization of untrusted...","description":"Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.","status":"published","published":"2025-02-07T21:31:02Z","modified":"2025-02-07T21:31:06Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:59:50.611216Z"}],"nvd":[{"id":"CVE-2021-27017","description":"Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.","status":"published","published":"2025-02-07T20:15:31.983Z","modified":"2026-06-17T03:44:08.16Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:07:08.629518Z"}]}}