CVE-2024-6827

Summary

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.

Affected Software

VendorProductVersion RangeStatus
benoitcbenoitc/gunicornunspecified <= latestaffected

Weaknesses

  • CWE-444: CWE-444 Inconsistent Interpretation of HTTP Requests

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: partial

References