CVEvulnerability
CVE-2023-40225
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-08-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-444
Description
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, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.
Affected configurations
• haproxy haproxy (<= 2.0.32)
• haproxy haproxy (>= 2.2.0 <= 2.2.30)
• haproxy haproxy (>= 2.4.0 <= 2.4.23)
• haproxy haproxy (>= 2.5.0 < 2.6.15)
• haproxy haproxy (>= 2.7.0 < 2.7.10)
• haproxy haproxy (>= 2.8.0 < 2.8.2)
Related
Weakness · CWE (1)
- CWE-444 Inconsistent Interpretation of HTTP Requests weakness
References
- https://cwe.mitre.org/data/definitions/436.html Technical Description
- https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856 Patch
- https://github.com/haproxy/haproxy/issues/2237 Exploit, Issue Tracking, Vendor Advisory
- https://www.haproxy.org/download/2.6/src/CHANGELOG Release Notes
- https://www.haproxy.org/download/2.7/src/CHANGELOG Release Notes
- https://www.haproxy.org/download/2.8/src/CHANGELOG Release Notes
- https://cwe.mitre.org/data/definitions/436.html Technical Description
- https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856 Patch
- https://github.com/haproxy/haproxy/issues/2237 Exploit, Issue Tracking, Vendor Advisory
- https://www.haproxy.org/download/2.6/src/CHANGELOG Release Notes
- https://www.haproxy.org/download/2.7/src/CHANGELOG Release Notes
- https://www.haproxy.org/download/2.8/src/CHANGELOG Release Notes