RHSA-2026:99159HighCVSS 8.1

Red Hat Security Advisory: nginx:1.26 security update

Published
November 12, 2026
Last Modified
November 12, 2026

🔗 CVE IDs covered (2)

CVE-2026-15176 →CVE-2026-97205 →

📋 Description

CVE-2026-15176 — nginx: nginx: heap-based buffer overflow in ngx_http_core_module via alias with rewrite referencing $request_filename CVE-2026-97205 — nginx: NGINX ngx_http_core_module vulnerability

🎯 Affected products68

  • Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.src (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-all-modules-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-filesystem-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-http-image-filter-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • nginx-mod-http-image-filter-2:1.26.3-9.module+el9.8.0+25246+e156b854.5.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.8)
  • +38 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this vulnerability, based on your environment requirements, you can either disable asynchronous file I/O (AIO) or Server Side Includes (SSI).

🔗 References (5)