CVE-2026-56276

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password hash, establishing persistent account access after temporary session compromise.

CVSS

No CVSS.

References

Link	Resource
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39
https://www.vulncheck.com/advisories/flowise-mass-assignment-in-put-api-v1-user-allows-password-hash-override
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39

Configurations

No configuration.

History

22 Jun 2026, 16:16

Type	Values Removed	Values Added
References	~~() https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39 -~~	() https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-59fh-9f3p-7m39 -

20 Jun 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-20 16:17

Updated : 2026-06-22 18:36

NVD link : CVE-2026-56276

Mitre link : CVE-2026-56276

CVE.ORG link : CVE-2026-56276

JSON object : View

Products Affected

No product.

CWE

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

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