FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password-based login endpoint uses TypeScript type assertion without runtime validation, allowing an unauthenticated attacker to pass a MongoDB query operator object (e.g., {"$ne": ""}) as the password field. This NoSQL injection bypasses the password check, enabling login as any user including the root administrator. This issue has been fixed in version 4.14.9.5.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2d Patch
- https://github.com/labring/FastGPT/security/advisories/GHSA-x8mx-2mr7-h9xg Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · fastgptNVD modified 2026-10-26 22:10
Affected (CPE criteria) 1
cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*
References 3
- https://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2d Patch
- https://github.com/labring/FastGPT/releases/tag/v4.14.9.5 Product, Release Notes
- https://github.com/labring/FastGPT/security/advisories/GHSA-x8mx-2mr7-h9xg Exploit, Mitigation, Vendor Advisory