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CVE-2026-40352

8.8 · HIGH

FastGPT is an AI Agent building platform.

Published Apr 17, 2026CWE-943EPSS 0.53%

Overview

CVE-2026-40352 is a high-severity vulnerability. It was published on April 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2dGitHubgithub.com/labring/FastGPT/releases/tag/v4.14.9.5GitHubgithub.com/labring/FastGPT/security/advisories/GHSA-422w-vrfj-72g6

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40352?

CVE-2026-40352 is a high-severity vulnerability. It was published on April 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-40352?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-40352?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-40352?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40352 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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