CVE-2026-40352

FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover

Published Apr 17, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Fastgpt
Fastgpt fastgpt
CPEs cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*
Vendors & Products Fastgpt
Fastgpt fastgpt
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Labring
Labring fastgpt
Vendors & Products Labring
Labring fastgpt
Type Values Removed Values Added
Description 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.
Title FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover
Weaknesses CWE-943
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 20, 2026, 1:36 PM
Reserved
Apr 10, 2026, 10:50 PM
Status
Analyzed
Published
Apr 17, 2026, 10:16 PM
Modified
Oct 26, 2026, 9:10 PM