RHSA-2026:17793: Critical: nginx:1.24 security update

Published May 15, 2026
·
Updated

Critical: nginx:1.24 security update

Other sources

nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Security Fix(es): nginx: NGINX: Arbitrary Code Execution Vulnerability (CVE-2026-42945) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

79 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
redhat/nginx<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-all-modules<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-filesystem<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debugsource<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-devel<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debugsource<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-devel<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-core-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-debugsource<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-devel<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-image-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-perl-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-mail-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx-mod-stream-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5
1.24.0-1.module+el9.4.0+24298+389e3815.5
redhat/nginx<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-core<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-core-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-debugsource<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-devel<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-image-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-image-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-perl<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-perl-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-xslt-filter<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-http-xslt-filter-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-mail<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-mail-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-stream<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
redhat/nginx-mod-stream-debuginfo<1.24.0-1.module+el9.4.0+24298+389e3815.5.aa
1.24.0-1.module+el9.4.0+24298+389e3815.5.aa

Remediation

Event History

May 15, 2026
Advisory Published
via Red Hat·03:48 PM
Data Sourced
via Red Hat·03:48 PM
DescriptionSeverityAffected Software
Jun 8, 2026
Advisory Published
via Red Hat·10:34 PM
Data Sourced
via Red Hat·10:34 PM
Remedy
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Frequently Asked Questions

1

What is the severity of RHSA-2026:17793?

RHSA-2026:17793 is classified as a critical vulnerability affecting nginx version 1.24.

2

How do I fix RHSA-2026:17793?

To fix RHSA-2026:17793, update nginx to version 1.24.0-1.module+el9.4.0+24298+389e3815.5 or later.

3

What vulnerability does RHSA-2026:17793 address?

RHSA-2026:17793 addresses an arbitrary code execution vulnerability identified as CVE-2026-42945.

4

What systems are affected by RHSA-2026:17793?

RHSA-2026:17793 affects several versions of Red Hat Enterprise Linux that include nginx 1.24.

5

Is there a workaround for RHSA-2026:17793?

No official workaround is provided for RHSA-2026:17793; the recommended action is to apply the available updates.

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