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OpenAdvisories
High ALSA-2025:21691 1 CVE

Important: haproxy security update

Published Nov 18, 2025 · Updated Oct 29, 2026

Summary

The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.

Security Fix(es):

* haproxy: denial of service vulnerability in HAProxy mjson library (CVE-2025-11230)

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.

Fixed packages 1

ReleasePackageFixed in
AlmaLinux · 10 haproxy 3.0.5-4.el10_1.1

Vulnerabilities 1

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-11230
  • report
    https://bugzilla.redhat.com/2413003
  • advisory
    https://errata.almalinux.org/10/ALSA-2025-21691.html