Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M
CVE-2026-61646FastGPT: Shared axios SSRF guard validates only the initial URL before following redirects
Medium 6.3
In plain English
A medium-severity server-side request forgery in FastGPT from labring. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Official description
FastGPT is a knowledge-based AI application platform. Prior to 4.15.0-beta5, FastGPT's shared SSRF guard validates only the initial request URL before handing the request to axios, and axios follows redirects by default. An authenticated workflow user can configure an HTTP request node to call an attacker-controlled public URL that redirects to cloud metadata, loopback, or internal services that the guard would block on direct request, and the HTTP node returns the response body to the workflow caller. This issue is fixed in version 4.15.0-beta5.
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
References
- https://github.com/labring/FastGPT/security/advisories/GHSA-g969-67mv-2qxq x_refsource_CONFIRM
- https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5 x_refsource_MISC