CVE-2026-41267
Last modified
CVE-2026-41267 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.0 |
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mjExploit, Vendor Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mjExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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