CVE-2026-40352

Name: CVE-2026-40352
Creator: NVD / NIST
Published: 2026-04-17T22:16:32.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-40352 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password change endpoint is vulnerable to NoSQL injection. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.38%

29.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-943

Affected Software

Vendor	Product	Versions
Fastgpt	Fastgpt	< 4.14.9.5

References

https://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2dPatch
https://github.com/labring/FastGPT/releases/tag/v4.14.9.5Product, Release Notes
https://github.com/labring/FastGPT/security/advisories/GHSA-422w-vrfj-72g6Exploit, Vendor Advisory

Timeline

Published: Apr 17, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-40352?

How severe is CVE-2026-40352?

CVE-2026-40352 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40352?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40352?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST