Vulnerability details
CVE-2026-41267
FlowiseAI Flowise
Flowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organization Association
CVSS 3.1
8.1High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| FlowiseAI | Flowise | < 3.1.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mj x_refsource_CONFIRM
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Details
- Published
- 2026-04-23
- Last updated
- 2026-04-23
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.33%
Probability of exploitation in 30 days
26.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-639Authorization Bypass Through User-Controlled Key
- CWE-915Improperly Controlled Modification of Dynamically-Determined Object Attributes