Missing Authentication for Critical Function Affecting flowise package, versions <3.1.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-FLOWISE-16119254
- published22 Apr 2026
- disclosed16 Apr 2026
- creditUnknown
Introduced: 16 Apr 2026
NewCVE-2026-41273 (opens in a new tab)How to fix?
Upgrade flowise to version 3.1.0 or higher.
Overview
flowise is a Flowiseai Server
Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the public-chatbotConfig and oauth2-credential/refresh endpoints. An attacker can obtain OAuth 2.0 access tokens for third-party services by retrieving internal workflow data and refreshing credentials without authentication. This is only exploitable if a self-hosted instance is configured with public chatflows that use OAuth 2.0 credentials.