Dashboard / CVE-2026-40351

CVE-2026-40351

CRITICAL
INFO Priority: 0.06 BB Relevance: 80/100
Published: 2026-04-17 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password-based login endpoint uses TypeScript type assertion without runtime validation, allowing an unauthenticated attacker to pass a MongoDB query operator object (e.g., {"$ne": ""}) as the password field. This NoSQL injection bypasses the password check, enabling login as any user including the root administrator. This issue has been fixed in version 4.14.9.5.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
fastgpt fastgpt < 4.14.9.5

References & Advisories (3)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.63%
Raw Score 0.006270
Percentile 50.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00627
2026-10-28
0.00627

Intelligence Sources

nvd ref →

External Links