CVE-2026-33857
apache2VulnerabilityCVSS 5.3Patched
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 3.1 : 5.3 MEDIUM
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A: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:11 | apache2 | - | 2.4.67-1~deb11u1 | fixed |
| Debian:12 | apache2 | - | 2.4.67-1~deb12u2 | fixed |
| Debian:13 | apache2 | - | 2.4.67-1~deb13u2 | fixed |
| Debian:14 | apache2 | - | 2.4.67-1 | fixed |
| Ubuntu:Pro:14.04:LTS | apache2 | - | 2.4.7-1ubuntu4.22+esm14 | fixed |
| Ubuntu:Pro:16.04:LTS | apache2 | - | 2.4.18-2ubuntu3.17+esm19 | fixed |
| Ubuntu:Pro:18.04:LTS | apache2 | - | 2.4.29-1ubuntu4.27+esm10 | fixed |
| Ubuntu:Pro:20.04:LTS | apache2 | - | 2.4.41-4ubuntu3.23+esm5 | fixed |
| Ubuntu:22.04:LTS | apache2 | - | 2.4.52-1ubuntu4.20 | fixed |
| Ubuntu:24.04:LTS | apache2 | - | 2.4.58-1ubuntu8.12 | fixed |
| Ubuntu:25.10 | apache2 | - | 2.4.64-1ubuntu3.4 | fixed |
| Ubuntu:26.04:LTS | apache2 | - | 2.4.66-2ubuntu2.1 | fixed |
| SUSE:Linux Enterprise Server 16.0 | apache2 | - | 2.4.66-160000.2.1 | fixed |
| SUSE:Linux Enterprise Server for SAP applications 16.0 | apache2 | - | 2.4.66-160000.2.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | apache2 | - | 2.4.66-35.78.1 | fixed |
| SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | apache2 | - | 2.4.66-35.78.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | apache2 | - | 2.4.66-150400.6.57.1 | fixed |
| openSUSE:Tumbleweed | apache2 | - | 2.4.67-1.1 | fixed |
| openSUSE:Leap 16.0 | apache2 | - | 2.4.66-160000.2.1 | fixed |
| Red Hat:hummingbird:1 | httpd | - | 0:2.4.67-0.1.hum1 | fixed |
| Red Hat:enterprise_linux:9::appstream | httpd | - | 0:2.4.62-13.el9_8.1 | fixed |
| Red Hat:enterprise_linux:10.2 | httpd | - | 0:2.4.63-13.el10_2.1 | fixed |
| Red Hat:enterprise_linux:8::appstream | httpd | - | 0:2.4.37-65.module+el8.10.0+24281+ea10630c.8 | fixed |
| Red Hat:rhel_e4s:8.8::appstream | httpd | - | 0:2.4.37-56.module+el8.8.0+24497+e470c0e2.12 | fixed |
| Red Hat:rhel_tus:8.8::appstream | httpd | - | 0:2.4.37-56.module+el8.8.0+24497+e470c0e2.12 | fixed |
| Red Hat:rhel_aus:8.6::appstream | httpd | - | 0:2.4.37-47.module+el8.6.0+24496+af8fe930.13 | fixed |
| Red Hat:rhel_eus_long_life:8.6::appstream | httpd | - | 0:2.4.37-47.module+el8.6.0+24496+af8fe930.13 | fixed |
| Red Hat:rhel_aus:8.4::appstream | httpd | - | 0:2.4.37-39.module+el8.4.0+24495+1afced82.12 | fixed |
| Red Hat:rhel_eus_long_life:8.4::appstream | httpd | - | 0:2.4.37-39.module+el8.4.0+24495+1afced82.12 | fixed |