haproxy enterprise vulnerabilities

Latest haproxy enterprise CVEs

Newest publication first

1. CVE-2026-26080 HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.

   Published 2026-07-20

   Low·CVSS 3.7 EPSS 0.55%

   HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.

2. CVE-2026-26081 HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected.

   Published 2026-07-20

   Medium·CVSS 4.8 EPSS 0.48%

   HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected.

3. CVE-2025-11230 Denial of service vulnerability in HAProxy mjson library

   Published 2025-11-19

   High·CVSS 7.5 EPSS 0.74%

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

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.