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CVE-2025-58434

Flowiseai Flowise authentication bypass

9.8 CRITICALPublic exploitEPSS 49.9%
  1. Published12 Sept 2025

Description

Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5 and earlier, the `forgot-password` endpoint in Flowise returns sensitive information including a valid password reset `tempToken` without authentication or verification. This enables any attacker to generate a reset token for arbitrary users and directly reset their password, leading to a complete account takeover (ATO). This vulnerability applies to both the cloud service (`cloud.flowiseai.com`) and self-hosted/local Flowise deployments that expose the same API. Commit 9e178d68873eb876073846433a596590d3d9c863 in version 3.0.6 secures password reset endpoints. Several recommended remediation steps are available. Do not return reset tokens or sensitive account details in API responses. Tokens must only be delivered securely via the registered email channel. Ensure `forgot-password` responds with a generic success message regardless of input, to avoid user enumeration. Require strong validation of the `tempToken` (e.g., single-use, short expiry, tied to request origin, validated against email delivery). Apply the same fixes to both cloud and self-hosted/local deployments. Log and monitor password reset requests for suspicious activity. Consider multi-factor verification for sensitive accounts.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Flowiseai Flowise< 3.0.6

Remediation

Fixed in
Flowiseai Flowise≥ 3.0.6

References

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Frequently asked

Is CVE-2025-58434 being actively exploited?

CVE-2025-58434 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 49.9%.

How severe is CVE-2025-58434?

CVE-2025-58434 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 49.9% probability of exploitation.

Which products are affected by CVE-2025-58434?

Affected products include Flowiseai Flowise.

How do I fix CVE-2025-58434?

Upgrade affected software to a fixed version, for example Flowiseai Flowise 3.0.6 or later, then confirm no affected versions remain in your inventory.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.