CVE-2024-6827

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.

Score
CVSS 3.0 7.5 High
Status
Deferred - security@huntr.dev
Published
2025-03-20
Last modified
2025-10-15
Weaknesses
CWE-444

Affected products

References