PT-2025-40954 · Haproxy+8 · Haproxy+8

Published 2025-10-02 · Updated 2026-01-29 · CVE-2025-11230

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions HAProxy versions prior to 2.6.12-1+deb12u3 HAProxy versions prior to 3.0.11-1+deb13u1 HAProxy version 3.0.8-1ubuntu1.2

Description HAProxy is susceptible to a denial of service condition when parsing specific JSON numbers. An attacker could potentially exploit this to cause HAProxy to crash.

Recommendations Upgrade HAProxy to version 2.6.12-1+deb12u3. Upgrade HAProxy to version 3.0.11-1+deb13u1. Upgrade HAProxy to version 3.0.8-1ubuntu1.2.

Fix

DoS

Weakness Enumeration

CWE-407

Related Identifiers

ALSA-2025:21691

ALSA-2025:21693

ALT-PU-2025-14636

ALT-PU-2025-14638

ALT-PU-2025-14723

AZL-70538

AZL-70583

BDU:2025-13169

BIT-HAPROXY-2025-11230

CVE-2025-11230

DSA-6017-1

INFSA-2025_21693

MGASA-2025-0242

OESA-2025-2418

OESA-2025-2419

OESA-2025-2420

OESA-2025-2421

OESA-2025-2422

OPENSUSE-SU-2025:15599-1

OPENSUSE-SU-2026:20032-1

RHSA-2025:21691

RHSA-2025:21692

RHSA-2025:21693

RHSA-2025:21694

RHSA-2025:22398

RHSA-2025:22399

RHSA-2025:22422

RHSA-2025_21693

RHSA-2026:8729

SUSE-SU-2025:03587-1

SUSE-SU-2025:03589-1

SUSE-SU-2025:20872-1

SUSE-SU-2025:20900-1

SUSE-SU-2025_03587-1

SUSE-SU-2025_03589-1

SUSE-SU-2026:20092-1

SUSE-SU-2026:20094-1

SUSE-SU-2026:20109-1

USN-7805-1

Affected Products

Alt Linux

Almalinux

Haproxy

Linuxmint

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 71

• https://errata.almalinux.org/9/ALSA-2025-21693.html · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2422 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-11230 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:20900-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-11230 · Security Note
• https://haproxy.com/blog/october-2025-cve-2025-11230-haproxy-mjson-library-denial-of-service-vulnerability · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13169 · Security Note
• http://repo.red-soft.ru/redos/8.0/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2420 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03587-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-21693.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20032-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7805-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20094-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2025:21691 · Vendor Advisory