Request Smuggling Vulnerability in Gunicorn by the Vendor
CVE-2024-6827

7.5HIGH

Key Information:

Vendor

Benoitc

Vendor
CVE Published:
20 March 2025

What is CVE-2024-6827?

Gunicorn version 21.2.0 contains a vulnerability due to improper validation of the 'Transfer-Encoding' header as per RFC standards. This oversight allows the default fallback method of 'Content-Length' to be exploited, leading to request smuggling vulnerabilities. Such vulnerabilities may result in cache poisoning, session manipulation, data leakage, and various attacks including SSRF, XSS, and Denial of Service (DoS), ultimately compromising data integrity and allowing unauthorized security bypasses.

Affected Version(s)

benoitc/gunicorn <= unspecified

References

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.