H
HAProxy
Security Risk Profile
37
/100
lowSecurity Risk Score
Comprehensive risk assessment based on 49 vulnerabilities, EPSS scores, exploitation status, and remediation availability.
📅 Data spans from May 27, 2012 to present
49
Total CVEs
27
Critical+High
0
Exploited
6
Unpatched
Threat Assessment
Avg CVSS
6.6
Base severity
Avg EPSS
0%
Exploit probability
Unpatched
6
Critical/High
Risk Level
37/100
low
Severity Distribution
Critical
3High
24Medium
16Low
2Exploit Likelihood
>50% chance
020-50%
05-20%
0<5%
1Age Distribution
Common Weaknesses (CWE)
1
Buffer Overflow
6
2
Integer Overflow
4
3
Null Pointer Dereference
2
4
Infoleak
2
5
Input Validation
2
Most Affected Products
1. HAProxy HAProxy Enterprise287
2. HAProxy HAProxy213
3. redhat/haproxy33
4. Canonical Ubuntu Linux21
5. debian/haproxy18
Recent Vulnerabilities
See more →CVE-2026-26081
CVSS 4.8medium
Jul 20, 2026
CVE-2026-26080
CVSS 3.7low
Jul 20, 2026
REDHAT-BUG-2490522
CVSS 7.0high
Jun 18, 2026🔧 No Patch
REDHAT-BUG-2490518
CVSS 7.0high
Jun 18, 2026🔧 No Patch
CVE-2026-55204
CVSS 8.7high
HAProxy - NULL Pointer Dereference in hpack_dht_insert Function
Jun 18, 2026
CVE-2026-55203
CVSS 9.0critical
HAProxy - Integer Overflow in FCGI Demux Record Length Field
Jun 18, 2026
https://reddit.com/r/cybersecurity/comments/1sngpac/haproxy_http3_http1_desync_crossprotocol/
unknown
HAProxy HTTP/3 -> HTTP/1 Desync: Cross-Protocol Smuggling via a Standalone QUIC FIN (CVE-2026-33555)
Apr 16, 2026🔧 No Patch
https://reddit.com/r/netsec/comments/1snem8w/haproxy_http3_http1_desync_crossprotocol/
unknown
HAProxy HTTP/3 -> HTTP/1 Desync: Cross-Protocol Smuggling via a Standalone QUIC FIN (CVE-2026-33555)
Apr 16, 2026🔧 No Patch
CVE-2026-33555
CVSS 5.8medium
Apr 13, 2026
CVE-2025-11230
CVSS 7.5high
Denial of service vulnerability in HAProxy mjson library
Nov 6, 2025
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