RHSA-2026:98529HighCVSS 8.2

Red Hat Security Advisory: nginx security update

Published
November 11, 2026
Last Modified
November 12, 2026

🔗 CVE IDs covered (5)

CVE-2026-15176 →CVE-2026-27651 →CVE-2026-27654 →CVE-2026-27784 →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-2026-27651 — NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled CVE-2026-27654 — NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module CVE-2026-27784 — NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file CVE-2026-97205 — nginx: NGINX ngx_http_core_module vulnerability

🎯 Affected products101

  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-32.el9_9.1.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-all-modules-2:1.20.1-32.el9_9.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-32.el9_9.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debugsource-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.20.1-32.el9_9.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • +71 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: 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 (8)