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CVE-2026-3276

CPythonVulnerability

De multiples vulnérabilités ont été découvertes dans CPython. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à l'intégrité des données, un contournement de la politique de sécurité et un déni de service.

No public exploitation has been reported so far. No distribution fix is listed yet; apply vendor mitigations and monitor.

Recommended action: Track your distribution's security tracker and apply the fix as soon as it ships.

CVE-2026-3276 CPython Vulnerability

Key points

Affected & fixed versions by distribution

Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.

DistributionPackageAffectedFixed versionStatus
Debian:12python3.11--affected (no fix yet)
Ubuntu:Pro:22.04:LTSpython3.11--affected (no fix yet)

Sources

Published 2026-06-05 · updated 2026-07-25