RHSA-2026:99159: Important: nginx:1.26 security update

Published Nov 11, 2026
·
Updated

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

66 affected componentsFixes available
redhat/nginx<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-all-modules<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-filesystem<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debugsource<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-devel<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debugsource<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-devel<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-core-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-debugsource<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-devel<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-image-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-perl-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-http-xslt-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-mail-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx-mod-stream-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5
1.26.3-9.module+el9.8.0+25246+e156b854.5
redhat/nginx<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-core<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-core-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-debugsource<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-devel<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-image-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-image-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-perl<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-perl-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-xslt-filter<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-http-xslt-filter-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-mail<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-mail-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-stream<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
redhat/nginx-mod-stream-debuginfo<1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
1.26.3-9.module+el9.8.0+25246+e156b854.5.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/nginx to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  2. Upgrade

    Upgrade redhat/nginx-all-modules to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  3. Upgrade

    Upgrade redhat/nginx-filesystem to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  4. Upgrade

    Upgrade redhat/nginx-core to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  5. Upgrade

    Upgrade redhat/nginx-core-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  6. Upgrade

    Upgrade redhat/nginx-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  7. Upgrade

    Upgrade redhat/nginx-debugsource to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  8. Upgrade

    Upgrade redhat/nginx-mod-devel to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  9. Upgrade

    Upgrade redhat/nginx-mod-http-image-filter to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  10. Upgrade

    Upgrade redhat/nginx-mod-http-image-filter-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  11. Upgrade

    Upgrade redhat/nginx-mod-http-perl to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  12. Upgrade

    Upgrade redhat/nginx-mod-http-perl-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  13. Upgrade

    Upgrade redhat/nginx-mod-http-xslt-filter to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  14. Upgrade

    Upgrade redhat/nginx-mod-http-xslt-filter-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  15. Upgrade

    Upgrade redhat/nginx-mod-mail to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  16. Upgrade

    Upgrade redhat/nginx-mod-mail-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  17. Upgrade

    Upgrade redhat/nginx-mod-stream to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  18. Upgrade

    Upgrade redhat/nginx-mod-stream-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5
  19. Upgrade

    Upgrade redhat/nginx to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  20. Upgrade

    Upgrade redhat/nginx-core to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  21. Upgrade

    Upgrade redhat/nginx-core-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  22. Upgrade

    Upgrade redhat/nginx-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  23. Upgrade

    Upgrade redhat/nginx-debugsource to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  24. Upgrade

    Upgrade redhat/nginx-mod-devel to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  25. Upgrade

    Upgrade redhat/nginx-mod-http-image-filter to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  26. Upgrade

    Upgrade redhat/nginx-mod-http-image-filter-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  27. Upgrade

    Upgrade redhat/nginx-mod-http-perl to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  28. Upgrade

    Upgrade redhat/nginx-mod-http-perl-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  29. Upgrade

    Upgrade redhat/nginx-mod-http-xslt-filter to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  30. Upgrade

    Upgrade redhat/nginx-mod-http-xslt-filter-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  31. Upgrade

    Upgrade redhat/nginx-mod-mail to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  32. Upgrade

    Upgrade redhat/nginx-mod-mail-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  33. Upgrade

    Upgrade redhat/nginx-mod-stream to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa
  34. Upgrade

    Upgrade redhat/nginx-mod-stream-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.26.3-9.module+el9.8.0+25246+e156b854.5.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

Which installed packages are covered by this update?

The advisory covers redhat/nginx, redhat/nginx-core, their debuginfo and debugsource packages, nginx module development files, and the HTTP image filter module and its debuginfo package.

2

What configuration element is specifically implicated in one of the fixes?

One fix addresses a heap-based buffer overflow involving ngx_http_core_module when an alias configuration is used with a rewrite that references $request_filename.

3

Can this advisory determine whether a particular NGINX deployment is vulnerable?

No. The provided information identifies affected packages and CVEs but does not include affected or fixed version numbers, configuration prerequisites beyond the alias/rewrite condition for one issue, or detection steps.

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