CVE-2026-9256
NginxVulnerabilityCVSS 9.2Patched
Une vulnérabilité a été découverte dans Nginx. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance et 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 : 9.2 CRITICAL · CVSS 3.1 : 8.1 HIGH
Attack vectorNetwork (remote)
Attack complexityHigh
Attack requirementsPresent
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Subsequent confidentialityNone
Subsequent integrityNone
Subsequent availabilityNone
Vector: AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Key points
- CVE : CVE-2026-9256
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:11 | nginx | - | 1.18.0-6.1+deb11u7 | fixed |
| Debian:12 | nginx | - | 1.22.1-9+deb12u8 | fixed |
| Debian:13 | nginx | - | 1.26.3-3+deb13u6 | fixed |
| Debian:14 | nginx | - | 1.30.1-3 | fixed |
| Ubuntu:Pro:14.04:LTS | nginx | - | 1.4.6-1ubuntu3.9+esm6 | fixed |
| Ubuntu:Pro:16.04:LTS | nginx | - | 1.10.3-0ubuntu0.16.04.5+esm7 | fixed |
| Ubuntu:Pro:18.04:LTS | nginx | - | 1.14.0-0ubuntu1.11+esm2 | fixed |
| Ubuntu:Pro:20.04:LTS | nginx | - | 1.18.0-0ubuntu1.7+esm1 | fixed |
| Ubuntu:22.04:LTS | nginx | - | 1.18.0-6ubuntu14.12 | fixed |
| Ubuntu:24.04:LTS | nginx | - | 1.24.0-2ubuntu7.9 | fixed |
| Ubuntu:25.10 | nginx | - | 1.28.0-6ubuntu1.4 | fixed |
| Ubuntu:26.04:LTS | nginx | - | 1.28.3-2ubuntu1.2 | fixed |
| SUSE:Linux Enterprise Server 16.0 | nginx | - | 1.27.2-160000.5.1 | fixed |
| SUSE:Linux Enterprise Server for SAP applications 16.0 | nginx | - | 1.27.2-160000.5.1 | fixed |
| SUSE:Linux Enterprise Module for Server Applications 15 SP7 | nginx | - | 1.21.5-150600.10.21.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP6-LTSS | nginx | - | 1.21.5-150600.10.21.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | nginx | - | 1.21.5-150600.10.21.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | nginx | - | 1.21.5-150400.3.20.1 | fixed |
| openSUSE:Tumbleweed | nginx | - | 1.31.1-1.1 | fixed |
| openSUSE:Leap 16.0 | nginx | - | 1.27.2-160000.5.1 | fixed |
| Red Hat:hummingbird:1 | nginx | - | 0:1.30.2-1.hum1 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 1:1.24.0-7.module+el9.8.0+24379+0344c460.2 | fixed |
| Red Hat:enterprise_linux:8::appstream | nginx | - | 1:1.24.0-3.module+el8.10.0+24380+8b0811ed.2 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 2:1.20.1-28.el9_8.3 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 2:1.26.3-9.module+el9.8.0+24374+c0e15309.1 | fixed |
| Red Hat:enterprise_linux:10.2 | nginx | - | 2:1.26.3-6.el10_2.4 | fixed |