ALSA-2026:98671: Important: nginx:1.24 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

9 affected componentsFixes available
almalinux/nginx<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-all-modules<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-filesystem<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-devel<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-http-image-filter<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-http-perl<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-http-xslt-filter<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-mail<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
almalinux/nginx-mod-stream<1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  2. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  3. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  4. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  5. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  6. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  7. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  8. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2
  9. Upgrade

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

    Fixed in 1:1.24.0-3.module_el8.10.0+4360+5035a360.6.alma.2

Event History

Nov 11, 2026
Advisory Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

Which AlmaLinux nginx packages are covered by this update?

The update covers nginx, nginx-all-modules, nginx-filesystem, nginx-mod-devel, nginx-mod-http-image-filter, nginx-mod-http-perl, nginx-mod-http-xslt-filter, and nginx-mod-mail.

2

What configuration pattern is specifically associated with the reported heap-based buffer overflow?

CVE-2026-15176 is described as a heap-based buffer overflow in ngx_http_core_module involving an alias directive with a rewrite that references $request_filename.

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