high8.6
CVE-2026-33752
curl_cffi: Redirect-based SSRF leads to internal network access in curl_cffi (with TLS impersonation bypass)
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | curl_cffi | < 0.15.0 | 0.15.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Lexiforest | Curl Cffi | before 0.15.0 Version 0.15.0 |