CVE-2024-1135
HTTP Request Smuggling in benoitc/gunicorn
- State
- Published
- Severity
- 7.5 High
- Published
- Apr 16, 2024
- Updated
- Feb 13, 2025
- Reserved
- Jan 31, 2024
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 7.5 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | @huntr_ai |
Weaknesses
- CWE-444 Inconsistent Interpretation of HTTP Requests
Affected Products
| Product | Versions |
|---|---|
benoitc/gunicornbenoitc |
|
References
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