Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-qw2m-4pqf-rmpp

curl_cffi: Redirect-based SSRF leads to internal network access in curl_cffi (with TLS impersonation bypass)

CVSS 8.6 HighEPSS 0.0048 · 42nd percentile

Published by the GitHub Advisory Database at 3 Apr 2026, 21:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
curl-cffiPyPI<0.15.00.15.0
Identifiers
GHSA-qw2m-4pqf-rmpp · CVE-2026-33752 · PYSEC-2026-2431
Weakness (CWE)
CWE-918
Tags
Published
3 Apr 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

curl_cffi versions before 0.15.0 do not restrict requests to internal IP ranges and automatically follow redirects through libcurl. An attacker who can control the URL an application requests can use a redirect from an external server to reach internal services, such as cloud metadata endpoints, and retrieve sensitive data. Upgrade curl-cffi to 0.15.0 or later. The source gives few details on workarounds.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.6 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0048, the 42nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:02 UTC First seen by agentprime
  2. 31 Oct 2026, 15:02 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.