CVE-2025-11230

Description

Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

Affected packages (3)

• Bitnami/haproxy>= 2.4.0, < 2.4.30, >= 2.6.0, < 2.6.23, >= 2.8.0, < 2.8.16, >= 3.0.0, < 3.0.12, >= 3.1.0, < 3.1.9, >= 3.2.0, < 3.2.6
• Debian/haproxyfrom 0, < 2.6.12-1+deb12u3
• Debian/haproxyfrom 0, < 2.6.12-1+deb12u3

CVSS scores

References (3)

• ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-11230
• WEBhttps://nvd.nist.gov/vuln/detail/CVE-2025-11230
• WEBhttps://www.haproxy.com/blog/october-2025-cve-2025-11230-haproxy-mjson-library-denial-of-service-vulnerability