RHSA-2026:19372CriticalCVSS 8.1

Red Hat Security Advisory: nginx:1.26 security update

Published
May 19, 2026
Last Modified
August 16, 2026

🔗 CVE IDs covered (1)

📋 Description

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

🎯 Affected products68

  • Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.src (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-all-modules-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-core-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debuginfo-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-debugsource-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-filesystem-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-devel-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-http-image-filter-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • nginx-mod-http-image-filter-2:1.26.3-9.module+el9.8.0+24288+e2e6d896.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • +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

🔗 References (4)