CPython Multiple Vulnerabilities Allow Security Bypass and Data Manipulation

CERT-Bund published security advisory WID-SEC-2026-1087 identifying multiple vulnerabilities in CPython (versions prior to 3.15.0). The vulnerabilities, with a CVSS Base Score of 7.4 (high severity), allow remote attackers to bypass security controls and manipulate data. Affected platforms include Linux, UNIX, Windows, and Fedora Linux.

Organizations using CPython should immediately update to version 3.15.0 or later to remediate these vulnerabilities. Security teams should assess Python deployments across their infrastructure, evaluate potential attack surfaces, and apply CERT-Bund's recommended mitigations to prevent exploitation.