CVE-2026-40352 HIGH

CVE-2026-40352: FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover

Vendor Labring
Product FastGPT
Weakness CWE-943
Published April 17, 2026
Last update April 20, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 17, 2026 CVE published
April 20, 2026 Record updated