ALPINE-CVE-2019-16785
- Source
- https://security.alpinelinux.org/vuln/CVE-2019-16785
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16785.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2019-16785
- Upstream
- Published
- 2019-12-20T23:15:11Z
- Modified
- 2026-11-03T06:32:35Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end server does not parse header fields with an LF the same way as it does those with a CRLF it can lead to the front-end and the back-end server parsing the same HTTP message in two different ways. This can lead to a potential for HTTP request smuggling/splitting whereby Waitress may see two requests while the front-end server only sees a single HTTP message. This issue is fixed in Waitress 1.4.0.
- References