CVE-2026-40352
HIGHFastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover
Title source: cnaDescription
FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password change endpoint is vulnerable to NoSQL injection. An authenticated attacker can bypass the "old password" verification by injecting MongoDB query operators. This allows an attacker who has gained a low-privileged session to change the password of their account (or others if combined with ID manipulation) without knowing the current one, leading to full account takeover and persistence. This issue has been fixed in version 4.14.9.5.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/labring/FastGPT/security/advisories/GHSA-422w-vrfj-72g6
X_Refsource_Misc x_refsource_misc
https://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2d
X_Refsource_Misc x_refsource_misc
https://github.com/labring/FastGPT/releases/tag/v4.14.9.5
Scores
CVSS v3
8.8
EPSS
0.0038
EPSS Percentile
29.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-943
Status
published
Products (2)
fastgpt/fastgpt
< 4.14.9.5
labring/FastGPT
< 4.14.9.5
Published
Apr 17, 2026
Tracked Since
Apr 18, 2026