CVE-2026-28753
nginxVulnerabilityCVSS 6.3Patched
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 4.0 : 6.3 MEDIUM · CVSS 3.1 : 3.7 LOW
Attack vectorNetwork (remote)
Attack complexityHigh
Attack requirementsPresent
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactLow
Availability impactNone
Subsequent confidentialityNone
Subsequent integrityNone
Subsequent availabilityNone
Vector: AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/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:11 | nginx | - | 1.18.0-6.1+deb11u6 | fixed |
| Debian:12 | nginx | - | 1.22.1-9+deb12u5 | fixed |
| Debian:13 | nginx | - | 1.26.3-3+deb13u3 | fixed |
| Debian:14 | nginx | - | 1.28.3-1 | 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 | - | 1.18.0-6ubuntu14.10 | fixed |
| Ubuntu:24.04:LTS | nginx | - | 1.24.0-2ubuntu7.7 | fixed |
| Ubuntu:25.10 | nginx | - | 1.28.0-6ubuntu1.2 | fixed |
| openSUSE:Tumbleweed | nginx | - | 1.29.7-1.1 | fixed |
| Red Hat:hummingbird:1 | nginx | - | 0:1.30.0-1.hum1 | fixed |