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CVE-2019-18277

Published: 2019-10-23T14:15Z
Last Modified: 2024-11-21T04:32Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the "chunked" value were not being correctly rejected. The impact was limited but if combined with the "http-reuse always" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification). > MITRE Terms of Use apply – see LICENSE‑MITRE.txt