ALSA-2026:36639

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Import Source
https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json
JSON Data
https://api.osv.dev/v1/vulns/ALSA-2026:36639
Related
Published
2026-07-08T00:00:00Z
Modified
2026-07-09T14:00:05.759133886Z
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 [almalinux-9.8.z] (JIRA:AlmaLinux-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

Affected packages

AlmaLinux:9
nginx

Package

Name
nginx
Purl
pkg:rpm/almalinux/nginx

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-all-modules

Package

Name
nginx-all-modules
Purl
pkg:rpm/almalinux/nginx-all-modules

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-core

Package

Name
nginx-core
Purl
pkg:rpm/almalinux/nginx-core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-filesystem

Package

Name
nginx-filesystem
Purl
pkg:rpm/almalinux/nginx-filesystem

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-devel

Package

Name
nginx-mod-devel
Purl
pkg:rpm/almalinux/nginx-mod-devel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-http-image-filter

Package

Name
nginx-mod-http-image-filter
Purl
pkg:rpm/almalinux/nginx-mod-http-image-filter

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-http-perl

Package

Name
nginx-mod-http-perl
Purl
pkg:rpm/almalinux/nginx-mod-http-perl

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-http-xslt-filter

Package

Name
nginx-mod-http-xslt-filter
Purl
pkg:rpm/almalinux/nginx-mod-http-xslt-filter

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-mail

Package

Name
nginx-mod-mail
Purl
pkg:rpm/almalinux/nginx-mod-mail

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"
nginx-mod-stream

Package

Name
nginx-mod-stream
Purl
pkg:rpm/almalinux/nginx-mod-stream

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.26.3-9.module_el9.8.0+281+75d5e6d4.2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:36639.json"