RHSA-2026:98528: Important: nginx:1.24 security update
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: heap-based buffer overflow in ngxhttpcoremodule via alias with rewrite referencing $requestfilename (CVE-2026-15176) nginx: NGINX ngxhttpcoremodule vulnerability (CVE-2026-97205) 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/nginxto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-all-modulesto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-filesystemto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-coreto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-core-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-debugsourceto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-develto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-image-filterto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-image-filter-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-perlto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-perl-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-xslt-filterto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-http-xslt-filter-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-mailto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-mail-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-streamto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
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redhat/nginx-mod-stream-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1 - Upgrade
Upgrade
redhat/nginxto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-coreto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-core-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-debugsourceto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-develto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-image-filterto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-image-filter-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-perlto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-perl-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-xslt-filterto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-http-xslt-filter-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-mailto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-mail-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-streamto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa - Upgrade
Upgrade
redhat/nginx-mod-stream-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-9.module+el9.9.0+25250+16ab46e3.1.aa
Event History
Frequently Asked Questions
Which deployed packages are covered by this update?
The update covers Red Hat nginx and nginx-core packages, along with their debuginfo and debugsource packages, nginx-mod-devel, and the nginx-mod-http-image-filter module and its debuginfo package.
What configuration condition is identified for the buffer overflow issue?
CVE-2026-15176 is described as a heap-based buffer overflow in ngx_http_core_module involving an alias configuration used with a rewrite that references $request_filename.
Are mitigation steps available if the update cannot be applied immediately?
No mitigation or workaround is provided in the advisory data. The described configuration condition for CVE-2026-15176 may help identify potentially exposed configurations, but the data does not establish a complete mitigation.