CVE-2023-40225

HighCVSS 7.2/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 10, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-40225: High severity, CVSS 7.2 | Vulnix