CVE-2024-1135 (GCVE-0-2024-1135)
Vulnerability from cvelistv5
Published
2024-04-16 00:00
Modified
2025-02-13 17:27
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests
Summary
Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.
References
Impacted products
Vendor Product Version
benoitc benoitc/gunicorn Version: unspecified   <
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