CVE-2023-43496

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.

• CWE-276
• CWE-276

• https://www.openwall.com/lists/oss-security/2023/09/20/5Mailing List, Third Party Advisory
• https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072Vendor Advisory
• https://www.openwall.com/lists/oss-security/2023/09/20/5Mailing List, Third Party Advisory
• https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072Vendor Advisory

Published

Sep 20, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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