RLSA-2026:36639

Source
https://errata.rockylinux.org/RLSA-2026:36639
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:36639.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:36639
Upstream
Published
2026-07-08T18:03:20.135265Z
Modified
2026-07-08T18:26:01.163930557Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: nginx:1.26 security, bug fix, and enhancement update
Details

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 or Denial of Service via heap-based buffer overflow with crafted HTTP/2 headers (CVE-2026-42055)

Bug Fix(es) and Enhancement(s):

  • nginx:1.26/nginx: "HTTP/2 bomb" nginx fix breaks module ABI causing crashes [rhel-9.8.z] (JIRA:Rocky Linux-191774)

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.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9 / nginx

Package

Name
nginx
Purl
pkg:rpm/rocky-linux/nginx?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module+el9.8.0+40222+e48d13b6.1
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:36639.json"

Rocky Linux:9 / nginx

Package

Name
nginx
Purl
pkg:rpm/rocky-linux/nginx?distro=rocky-linux-9&epoch=2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module+el9.8.0+40194+40adfc1b
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:36639.json"