RHSA-2026:17792CriticalCVSS 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 products101

  • Red Hat CodeReady Linux Builder EUS (v.9.4)
  • Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-1:1.20.1-16.el9_4.6.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-all-modules-1:1.20.1-16.el9_4.6.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-core-debuginfo-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-debuginfo-1:1.20.1-16.el9_4.6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • nginx-debugsource-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • nginx-debugsource-1:1.20.1-16.el9_4.6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • +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)