CVE-2026-46440 PUBLISHED

Flowise: Basic Auth Credentials Exposed via API

Assigner: GitHub_M
Reserved: 13.05.2026 Published: 08.06.2026 Updated: 08.06.2026

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, the checkBasicAuth endpoint validates credentials in plaintext without rate limiting and with direct comparison. This issue has been patched in version 3.1.2.

Metrics

CVSS 3.0

CVSS Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.0

Product Status

Vendor	FlowiseAI
Product	Flowise
Versions	Version < 3.1.2 is affected

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-php6-83fg-gw3g
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2

Problem Types

CWE-522: Insufficiently Protected Credentials CWE