PyPI/waitress CVE-2019-16785: high 7.1, EPSS 2.54%

HTTP Request Smuggling: LF vs CRLF handling in Waitress

Action: Upgrade waitress to 1.4.0 or later.

pip install waitress==1.4.0

Affected

Fixed versions

Sources

• osv: GHSA-pg36-wpm5-g57p
• https://github.com/Pylons/waitress/security/advisories/GHSA-pg36-wpm5-g57p
• https://nvd.nist.gov/vuln/detail/CVE-2019-16785
• https://github.com/Pylons/waitress/commit/8eba394ad75deaf9e5cd15b78a3d16b12e6b0eba
• https://access.redhat.com/errata/RHSA-2020:0720
• https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes
• https://github.com/Pylons/waitress
• https://github.com/pypa/advisory-database/tree/main/vulns/waitress/PYSEC-2019-136.yaml
• https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GVDHR2DNKCNQ7YQXISJ45NT4IQDX3LJ7
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYEOTGWJZVKPRXX2HBNVIYWCX73QYPM5
• https://www.oracle.com/security-alerts/cpuapr2022.html

CVE-2019-16785 · published 2019-12-20T23:03:57Z · modified 2026-09-10T03:49:24.779958466Z · JSON