CVE-2026-41273

HIGH

8.2

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public chatflow configuration endpoint, an attacker can retrieve internal workflow data, including OAuth credential identifiers, which can then be used to refresh and obtain valid OAuth 2.0 access tokens without authentication. This vulnerability is fixed in 3.1.0.

CVE Details

CVSS v3.1 Score8.2

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/23/2026

Last Modified4/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

flowiseai:flowise

Weaknesses (CWE)

CWE-306

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6f7g-v4pp-r667(security-advisories@github.com)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6f7g-v4pp-r667(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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