haproxy (AlmaLinux:9) — known CVEs & security advisories

Known CVE vulnerabilities and GitHub Security Advisories affecting the AlmaLinux:9 package haproxy, with affected version ranges, CVSS severity, EPSS exploit prediction, and CISA KEV status.

CVEs (6)

• CVE-2023-25725 — CVSS 9.1 (critical): HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request…
• CVE-2023-45539 — CVSS 8.2 (high): HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have…
• CVE-2023-0836 — CVSS 7.5 (high): An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before…
• CVE-2025-11230 — CVSS 7.5 (high): Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON…
• CVE-2023-40225 — CVSS 7.2 (high): HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10…
• CVE-2023-0056 — CVSS 6.5 (medium): An uncontrolled resource consumption vulnerability was discovered in HAProxy which could crash the service. This issue could allow an…