CVE-2026-11940
python3.11VulnerabilityCVSS 7.8
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.
Severity metrics
CVSS 4.0 : 7.8 HIGH
Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactNone
Subsequent confidentialityHigh
Subsequent integrityHigh
Subsequent availabilityNone
Vector: AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
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.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Debian:12 | python3.11 | - | - | affected (no fix yet) |
| Ubuntu:Pro:22.04:LTS | python3.11 | - | - | affected (no fix yet) |