CVE-2026-27654
nginxVulnerabilityCVSS 8.8Patched
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 : 8.8 HIGH · CVSS 3.1 : 8.2 HIGH
Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactLow
Availability impactHigh
Subsequent confidentialityNone
Subsequent integrityNone
Subsequent availabilityNone
Vector: AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/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:enterprise_linux_eus:10.0 | nginx | - | 2:1.26.3-1.el10_0.8 | fixed |
| Red Hat:rhel_eus:9.6::appstream | nginx | - | 2:1.20.1-22.el9_6.5 | fixed |
| Red Hat:rhel_eus:9.4::appstream | nginx | - | 1:1.20.1-16.el9_4.5 | fixed |
| Red Hat:rhel_e4s:9.2::appstream | nginx | - | 1:1.20.1-14.el9_2.5 | fixed |
| Red Hat:rhel_e4s:9.0::appstream | nginx | - | 1:1.20.1-10.el9_0.3 | fixed |
| Red Hat:rhel_eus:9.4::appstream | nginx | - | 1:1.24.0-1.module+el9.4.0+24260+3e6db809.4 | fixed |
| Red Hat:rhel_eus:9.6::appstream | nginx | - | 1:1.24.0-4.module+el9.6.0+24259+49d2cefe.2 | fixed |
| Red Hat:rhel_eus:9.6::appstream | nginx | - | 2:1.26.3-1.module+el9.6.0+24255+10832c07.2 | fixed |
| Red Hat:enterprise_linux:10.1 | nginx | - | 2:1.26.3-2.el10_1.1 | fixed |
| Red Hat:enterprise_linux:8::appstream | nginx | - | 1:1.24.0-3.module+el8.10.0+24155+8a5ade52 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 1:1.24.0-5.module+el9.7.0+24151+c43a3acf.2 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 2:1.20.1-24.el9_7.2 | fixed |
| Red Hat:enterprise_linux:9::appstream | nginx | - | 2:1.26.3-2.module+el9.7.0+24173+4204b761.1 | fixed |
| Red Hat:hummingbird:1 | nginx | - | 0:1.30.0-1.hum1 | fixed |