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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.

PUBLISHED Reserved 2026-04-10 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-943: Improper Neutralization of Special Elements in Data Query Logic

Product status

< 4.14.9.5
affected

References

github.com/...astGPT/security/advisories/GHSA-422w-vrfj-72g6

github.com/...ommit/bd966d479fbe414d02679cf79f9eaaab3d100a2d

github.com/labring/FastGPT/releases/tag/v4.14.9.5

cve.org (CVE-2026-40352)

nvd.nist.gov (CVE-2026-40352)

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