RLSA-2026:98527: Important: nginx:1.26 security update

Published Nov 13, 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

18 affected componentsFixes available
rocky-linux/nginx<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-core<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-core-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-debugsource<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-devel<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-image-filter<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-image-filter-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-perl<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-perl-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-xslt-filter<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-http-xslt-filter-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-mail<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-mail-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-stream<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-mod-stream-debuginfo<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-all-modules<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
rocky-linux/nginx-filesystem<2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
2:1.26.3-10.module+el9.9.0+40427+6a1991db.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade rocky-linux/nginx to a version that resolves this vulnerability.

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  2. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  3. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  4. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  5. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  6. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  7. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  8. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  9. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  10. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  11. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  12. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  13. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  14. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  15. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  16. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  17. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1
  18. Upgrade

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

    Fixed in 2:1.26.3-10.module+el9.9.0+40427+6a1991db.1

Event History

Nov 13, 2026
Advisory Published
via OSV·12:04 PM
Data Sourced
via OSV·12:04 PM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

Which Rocky Linux packages are covered by this update?

The advisory covers nginx, nginx-core, nginx-core-debuginfo, nginx-debuginfo, nginx-debugsource, nginx-mod-devel, nginx-mod-http-image-filter, and nginx-mod-http-image-filter-debuginfo.

2

What access does an attacker need according to the provided severity vector?

The vector indicates network-based attack access, with no required privileges or user interaction. It also indicates high impacts to confidentiality, integrity, and availability, although attack complexity is rated high.

3

Is a default nginx configuration known to be affected?

The provided data does not state whether default configurations are affected. One listed issue involves an alias with a rewrite that references $request_filename, but the advisory does not provide enough configuration detail to determine exposure.

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Resources

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