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Advisory record · GHSA-g2xc-35jw-c63p

HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

CVSS 7.1 HighEPSS 0.024 · 83rd percentile

Published by the GitHub Advisory Database at 20 Dec 2019, 23:04 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
waitressPyPI<1.4.01.4.0
Identifiers
GHSA-g2xc-35jw-c63p · CVE-2019-16786 · PYSEC-2019-137
Weakness (CWE)
CWE-444
Tags
Published
20 Dec 2019
Updated
8 Jul 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.024, the 83rd percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 20 Dec 2019. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.