CVE-2026-40352HIGH 8.8EPSS p29.7%

CVE-2026-40352CVE-2026-40352

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.38% probability of exploitation · percentile 29.7% · 2026-06-19T12:03:05Z
Published2026-04-17
Last modified2026-04-27

Underlying weaknesses· 1

CWE-943

References

  1. https://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2d
  2. https://github.com/labring/FastGPT/releases/tag/v4.14.9.5
  3. https://github.com/labring/FastGPT/security/advisories/GHSA-422w-vrfj-72g6

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements in Data Query Logiccwe-9430%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.