CVE-2026-33752
HIGHRedirect-based SSRF leading to internal network access in curl_cffi (with TLS impersonation bypass)
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-33752. PoCs published by redyank.
AI-analyzed exploit summary The repository provides a detailed technical analysis of CVE-2026-33752, a redirect-based SSRF vulnerability in curl_cffi. It explains how the library's lack of internal IP range validation and automatic redirect following can lead to unauthorized access to internal services, including cloud metadata endpoints.
Description
curl_cffi is the a Python binding for curl. Prior to 0.15.0, curl_cffi does not restrict requests to internal IP ranges, and follows redirects automatically via the underlying libcurl. Because of this, an attacker-controlled URL can redirect requests to internal services such as cloud metadata endpoints. In addition, curl_cffi’s TLS impersonation feature can make these requests appear as legitimate browser traffic, which may bypass certain network controls. This vulnerability is fixed in 0.15.0.
Exploits (1)
The repository provides a detailed technical analysis of CVE-2026-33752, a redirect-based SSRF vulnerability in curl_cffi. It explains how the library's lack of internal IP range validation and automatic redirect following can lead to unauthorized access to internal services, including cloud metadata endpoints.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N