What is CVE-2026-33752?

CVE-2026-33752 is a high-severity vulnerability in Lexiforest Curl_cffi, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-04-06.

How severe is CVE-2026-33752?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2026-33752 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Lexiforest Curl_cffi

CVE-2026-33752

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 redire…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (5.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Lexiforest Curl_cffi — versions < 0.15.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

redyank/CVE-2026-33752

References

https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmpp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-33752?: CVE-2026-33752 is a high-severity vulnerability in Lexiforest Curl_cffi, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-04-06.
How severe is CVE-2026-33752?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2026-33752 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.