CVE catalog
CVE-2019-16792
waitress: CVE-2019-16792
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.98% · Oct 25, 2026
Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | waitress | sid | 3.0.2-2 | fixed |
| Debian | waitress | forky | 3.0.2-2 | fixed |
| Debian | waitress | trixie | 3.0.2-1 | fixed |
| Debian | waitress | bookworm | 2.1.2-2+deb12u1 | fixed |
| Ubuntu | waitress | 16.04 | 0.8.9-2ubuntu1 | vulnerable |
| Ubuntu | waitress | 16.04 | 0.8.10-1 | vulnerable |
| Ubuntu | waitress | 18.04 | 1.0.1-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | waitress | source | sid | 1.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | waitress | source | forky | 1.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | waitress | source | trixie | 1.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | waitress | source | bookworm | 1.4.1-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-waitress]Fixed
Source package: [waitress]
Details (2)
2.1.2-2+deb12u1· all · bookwormFixed · Fixed:
1.4.1-1dsa · waitress · debian · bookworm; dsa · waitress · debian · 12
2.1.2-2+deb12u1· all · bookwormFixed · Fixed:
1.4.1-1dsa · waitress · debian · bookworm; dsa · waitress · debian · 12
- [python-waitress-doc]Fixed
Source package: [waitress]
Details (2)
2.1.2-2+deb12u1· all · bookwormFixed · Fixed:
1.4.1-1dsa · waitress · debian · bookworm; dsa · waitress · debian · 12
2.1.2-2+deb12u1· all · bookwormFixed · Fixed:
1.4.1-1dsa · waitress · debian · bookworm; dsa · waitress · debian · 12
[Debian 13 (Trixie)]
- [python3-waitress]Fixed
Source package: [waitress]
Details (2)
3.0.2-1· all · trixieFixed · Fixed:
1.4.1-1dsa · waitress · debian · 13
3.0.2-1· all · trixieFixed · Fixed:
1.4.1-1dsa · waitress · debian · 13
- [python-waitress-doc]Fixed
Source package: [waitress]
Details (2)
3.0.2-1· all · trixieFixed · Fixed:
1.4.1-1dsa · waitress · debian · 13
3.0.2-1· all · trixieFixed · Fixed:
1.4.1-1dsa · waitress · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-ru-2020_2072-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-16792]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-16792]
- [https://security-tracker.debian.org/tracker/CVE-2019-16792]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]