RHSA-2026:18029CriticalCVSS 8.1

Red Hat Security Advisory: nginx security update

Published
May 18, 2026
Last Modified
August 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-42945 →

📋 Description

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

🎯 Affected products101

  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-24.el9_7.3.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-all-modules-2:1.20.1-24.el9_7.3.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.20.1-24.el9_7.3.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • nginx-debugsource-2:1.20.1-24.el9_7.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.20.1-24.el9_7.3.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

🔗 References (4)