Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment. This vulnerability is fixed in 3.1.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mjExploitVendor Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mjExploitVendor Advisory
FAQ
What is CVE-2026-41267?
CVE-2026-41267 is a vulnerability with a CVSS score of 8.1 (HIGH). Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint...
How severe is CVE-2026-41267?
CVE-2026-41267 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41267?
Check the references section above for vendor advisories and patch information. Affected products include: Flowiseai Flowise.