| Name | CVE-2024-6827 |
| Description | Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data exposure, session manipulation, SSRF, XSS, DoS, data integrity compromise, security bypass, information leakage, and business logic abuse. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1100989 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| gunicorn (PTS) | bullseye | 20.1.0-1 | vulnerable |
| bullseye (security) | 20.1.0-1+deb11u1 | vulnerable | |
| bookworm | 20.1.0-6+deb12u1 | vulnerable | |
| sid, trixie | 23.0.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| gunicorn | source | (unstable) | 23.0.0-1 | 1100989 |
[bookworm] - gunicorn <no-dsa> (Minor issue)
https://huntr.com/bounties/1b4f8f38-39da-44b6-9f98-f618639d0dd7
Fixed by: https://github.com/benoitc/gunicorn/commit/555d2fa27f2d891f23bd03890e4a826b5018c6b4 (23.0.0)