AlmaLinux alert ALSA-2026:36364 (nginx)

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[Announce] [Security Advisory] ALSA-2026:36364: nginx security, bug fix, and enhancement update (Important)
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Wed, 08 Jul 2026 15:31:34 +0000
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<0100019f425b17ef-cb0cb474-f713-436c-a753-115a8d8682e5-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 10
Type: Security
Severity: Important
Release date: 2026-07-08

Summary:

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):  

  * "HTTP/2 bomb" nginx fix breaks module ABI causing crashes [almalinux-10.2.z]
(JIRA:AlmaLinux-191778)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/10/ALSA-2026-36364.html

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AlmaLinux Team
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