{"id":"BIT-haproxy-2023-40225","details":"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.","aliases":["CVE-2023-40225"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T10:53:12.013Z","database_specific":{"cpes":["cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://cwe.mitre.org/data/definitions/436.html"},{"type":"WEB","url":"https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856"},{"type":"WEB","url":"https://github.com/haproxy/haproxy/issues/2237"},{"type":"WEB","url":"https://www.haproxy.org/download/2.6/src/CHANGELOG"},{"type":"WEB","url":"https://www.haproxy.org/download/2.7/src/CHANGELOG"},{"type":"WEB","url":"https://www.haproxy.org/download/2.8/src/CHANGELOG"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40225"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Bitnami","purl":"pkg:bitnami/haproxy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.33"},{"introduced":"2.2.0"},{"fixed":"2.2.31"},{"introduced":"2.4.0"},{"fixed":"2.4.24"},{"introduced":"2.5.0"},{"fixed":"2.6.15"},{"introduced":"2.7.0"},{"fixed":"2.7.10"},{"introduced":"2.8.0"},{"fixed":"2.8.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/haproxy/BIT-haproxy-2023-40225.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}],"schema_version":"1.7.3"}