CVE-2026-15308
CPythonVulnerabilityCVSS 8.7Patched
Une vulnérabilité a été découverte dans CPython. Elle permet à un attaquant de provoquer un déni de service à distance.
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 4.0 : 8.7 HIGH
Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Subsequent confidentialityNone
Subsequent integrityNone
Subsequent availabilityNone
Vector: AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Key points
- CVE : CVE-2026-15308
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) |
| Red Hat:enterprise_linux:10.2 | python3 | - | 0:3.12.13-2.el10_2.1 | fixed |
| Red Hat:enterprise_linux:8::baseos | python3 | - | 0:3.6.8-77.el8_10 | fixed |
| Red Hat:enterprise_linux:9::baseos | python3 | - | 0:3.9.25-7.el9_8.2 | fixed |
| Red Hat:enterprise_linux:9::crb | python3 | - | 0:3.9.25-7.el9_8.2 | fixed |
| Red Hat:hummingbird:1 | python3.11 | - | 0:3.11.15-5.2.hum1 | fixed |