Improper Handling of Missing Values Affecting flowise package, versions >=3.0.1 <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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Test your applications- Snyk IDSNYK-JS-FLOWISE-16115560
- published21 Apr 2026
- disclosed16 Apr 2026
- creditNicholas Zubrisky
Introduced: 16 Apr 2026
NewCVE-2026-41276 (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 Improper Handling of Missing Values password reset flow in account.service.ts. An attacker can reset another user’s password by supplying a crafted reset request with an invalid or missing temporary token and still reach the password update path. The vulnerable logic accepts reset data without first rejecting empty tokens, compares the supplied token against the stored value without handling unset state safely, and uses an expiry check that can be bypassed when the token timestamp is malformed or absent. As a result, an unauthenticated attacker can take over an account and lock the legitimate user out of their password-protected access.
Notes
- The reset flow is gated by
PASSWORD_RESET_TOKEN_EXPIRY_IN_MINUTES; deployments that override that environment variable change the acceptance window for reset tokens, so the practical exposure is not limited to the default 15-minute setting. - The password-reset path also clears any existing session state for the account after a successful reset, so a successful bypass can invalidate the victim’s active sessions in addition to changing the credential.