AlmaLinux alert ALSA-2026:36777 (unbound)

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[Announce]  [Security Advisory] ALSA-2026:36777: unbound security update (Important)
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Fri, 31 Jul 2026 16:16:20 +0000
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<0100019fb8f659ce-de4c0537-2fc4-4f5c-8965-deb90bf8237d-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: 9
Type: Security
Severity: Important
Release date: 2026-07-31

Summary:

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.   

Security Fix(es):  

  * unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
  * unbound: Unbound: Cache manipulation via 'ghost domain names' attack (CVE-2026-40622)
  * unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS
Resource Record Sets (CVE-2026-44390)
  * unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic
(CVE-2026-42534)


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/9/ALSA-2026-36777.html

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AlmaLinux Team
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