High severity8.6NVD Advisory· Published Apr 6, 2026· Updated Apr 9, 2026
CVE-2026-33752
CVE-2026-33752
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
curl_cffiPyPI | < 0.15.0 | 0.15.0 |
Affected products
5cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta1:*:*:*:python:*:*+ 4 more
- cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta1:*:*:*:python:*:*
- cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta2:*:*:*:python:*:*
- cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta3:*:*:*:python:*:*
- cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta4:*:*:*:python:*:*
- cpe:2.3:a:lexiforest:curl_cffi:*:*:*:*:*:python:*:*range: <0.15.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmppnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-qw2m-4pqf-rmppghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33752ghsaADVISORY
News mentions
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