RHSA-2026:17791CriticalCVSS 8.1

Red Hat Security Advisory: nginx security update

Published
May 15, 2026
Last Modified
August 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-42945 →

📋 Description

CVE-2026-42945 — nginx: NGINX: Arbitrary Code Execution Vulnerability

🎯 Affected products56

  • Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-1:1.20.1-10.el9_0.4.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-all-modules-1:1.20.1-10.el9_0.4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debuginfo-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debuginfo-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debuginfo-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debuginfo-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debugsource-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debugsource-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debugsource-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-debugsource-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-filesystem-1:1.20.1-10.el9_0.4.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-debuginfo-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-debuginfo-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-debuginfo-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-image-filter-debuginfo-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-1:1.20.1-10.el9_0.4.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-1:1.20.1-10.el9_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-debuginfo-1:1.20.1-10.el9_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • nginx-mod-http-perl-debuginfo-1:1.20.1-10.el9_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • +26 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

🔗 References (4)