CVE-2026-67621 — HIGH (7.6)

Vulnerability Description

Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation endpoints. Attackers holding only view-level permissions can send direct HTTP requests to the upsert and refresh document store routes to trigger document ingestion, refresh vector database contents, consume embedding API credits, and modify knowledge bases used by downstream chatflows.

CVSS Score

7.6

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

LOW

Related Weaknesses (CWE)

CWE-862

References

FAQ

What is CVE-2026-67621?

CVE-2026-67621 is a vulnerability with a CVSS score of 7.6 (HIGH). Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation end...

How severe is CVE-2026-67621?

CVE-2026-67621 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-67621?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.