{"id":"CVE-2023-43496","aliases":["BIT-jenkins-2023-43496","GHSA-55wp-3pq4-w8p9"],"url":"https://o3.security/vulnerability/CVE-2023-43496","summary":"Jenkins temporary plugin file created with insecure permissions ","details":"Jenkins 2.423 and earlier, LTS 2.414.1 and earlier creates a temporary file in the system temporary directory with the default permissions for newly created files when installing a plugin from a URL, potentially allowing attackers with access to the system temporary directory to replace the file before it is installed in Jenkins, potentially resulting in arbitrary code execution.","published":"2023-09-20T17:15:11.820Z","modified":"2026-07-09T09:39:26.469326Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.414.2"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.424"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2023/09/20/5"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T09:39:26.469326Z"}}