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Medium ALSA-2026:18556 2 CVEs

Moderate: unbound security update

Published May 19, 2026 · Updated Oct 29, 2026

Summary

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

Security Fix(es):

* unbound: DNSBomb vulnerability (CVE-2024-33655)
* unbound: Unbound domain hijacking via promiscuous records (CVE-2025-11411)

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.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Fixed packages 7

ReleasePackageFixed in
AlmaLinux · 10 python3-unbound 1.24.2-7.el10
AlmaLinux · 10 unbound 1.24.2-7.el10
AlmaLinux · 10 unbound-anchor 1.24.2-7.el10
AlmaLinux · 10 unbound-devel 1.24.2-7.el10
AlmaLinux · 10 unbound-dracut 1.24.2-7.el10
AlmaLinux · 10 unbound-libs 1.24.2-7.el10
AlmaLinux · 10 unbound-utils 1.24.2-7.el10

Vulnerabilities 2

References

  • report
    https://access.redhat.com/security/cve/CVE-2024-33655
  • report
    https://access.redhat.com/security/cve/CVE-2025-11411
  • report
    https://bugzilla.redhat.com/2279942
  • report
    https://bugzilla.redhat.com/2405706
  • advisory
    https://errata.almalinux.org/10/ALSA-2026-18556.html