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nginx: ngx_http_rewrite_module: code execution and denial of service

🗓️ 25 Jun 2026 06:47:50Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Nginx rewrite module flaw causes unauthenticated heap overflow in redirects, risking code execution.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64nginx2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.aarch64.rpm
Red Hat Enterprise Linux9ppc64lenginx2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.ppc64le.rpm
Red Hat Enterprise Linux9s390xnginx2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.s390x.rpm
Red Hat Enterprise Linux9x86_64nginx2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.x86_64.rpm
Red Hat Enterprise Linux9anynginx-all-modules2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.noarchnginx-all-modules-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.noarch.noarch.rpm
Red Hat Enterprise Linux9aarch64nginx-core2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-core-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.aarch64.rpm
Red Hat Enterprise Linux9ppc64lenginx-core2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-core-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.ppc64le.rpm
Red Hat Enterprise Linux9s390xnginx-core2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-core-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.s390x.rpm
Red Hat Enterprise Linux9x86_64nginx-core2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-core-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.x86_64.rpm
Red Hat Enterprise Linux9aarch64nginx-core-debuginfo2:1.26.3-9.module+el9.8.0+24374+c0e15309.1nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+24374+c0e15309.1.aarch64.rpm
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03 Jul 2026 12:01Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.18.1
CVSS 49.2
EPSS0.04261
SSVC
7