What is RHSA-2026:17753?

RHSA-2026:17753 is a security advisory published by Red Hat Product Security with Critical severity. Red Hat Security Advisory: nginx:1.26 security update

Which CVE IDs does RHSA-2026:17753 cover?

RHSA-2026:17753 covers the following CVE IDs: CVE-2026-42945. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:17753?

RHSA-2026:17753 has a CVSS v3 base score of 8.1, published by Red Hat Product Security.

Which products are affected by RHSA-2026:17753?

RHSA-2026:17753 affects 68 products, including: Red Hat Enterprise Linux AppStream EUS (v.9.6); nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6); nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6); nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6); nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.src (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6); and others — see the full list on the advisory page.

RHSA-2026:17753CriticalCVSS 8.1

Red Hat Security Advisory: nginx:1.26 security update

Vendor

Red Hat Product Security

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 products68

Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.src (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-all-modules-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-core-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debuginfo-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debugsource-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debugsource-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debugsource-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-debugsource-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-filesystem-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.noarch (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-devel-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-devel-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-devel-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.s390x (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-devel-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.x86_64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-http-image-filter-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.aarch64 (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
nginx-mod-http-image-filter-2:1.26.3-1.module+el9.6.0+24296+87cb744c.3.ppc64le (nginx:1.26) as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
+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

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products68

✅ Remediation

🔗 References (4)