Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lexiforest | Curl Cffi | < 0.15.0 |
Related Weaknesses (CWE)
References
- https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmppExploitVendor Advisory
- https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmppExploitVendor Advisory
FAQ
What is CVE-2026-33752?
CVE-2026-33752 is a vulnerability with a CVSS score of 8.6 (HIGH). 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...
How severe is CVE-2026-33752?
CVE-2026-33752 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33752?
Check the references section above for vendor advisories and patch information. Affected products include: Lexiforest Curl Cffi.