PyPI/waitress CVE-2019-16792: critical, EPSS 1.98%

HTTP Request Smuggling: Content-Length Sent Twice in Waitress

Action: Upgrade waitress to 1.4.0 or later.

pip install waitress==1.4.0

Affected

Fixed versions

Sources

• osv: GHSA-4ppp-gpcr-7qf6
• https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6
• https://nvd.nist.gov/vuln/detail/CVE-2019-16792
• https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65
• 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-2020-178.yaml
• https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html
• https://www.oracle.com/security-alerts/cpuapr2022.html

CVE-2019-16792 · published 2019-12-20T23:04:35Z · modified 2026-07-08T06:00:30.894868366Z · JSON