Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and internal state fields of DocumentStore entities. Because the service uses repository.save() with a client-supplied primary key, the POST create endpoint behaves as an implicit UPSERT operation. This enables overwriting existing DocumentStore objects. In multi-workspace or multi-tenant deployments, this can lead to cross-workspace object takeover and broken object-level authorization (IDOR), allowing an attacker to reassign or modify DocumentStore objects belonging to other workspaces. This vulnerability is fixed in 3.1.0.
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History
Sat, 25 Apr 2026 02:15:00 +0000
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ssvc
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Fri, 24 Apr 2026 15:15:00 +0000
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Flowiseai
Flowiseai flowise |
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| CPEs | cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Flowiseai
Flowiseai flowise |
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cvssV3_1
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Thu, 23 Apr 2026 20:15:00 +0000
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| Description | Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and internal state fields of DocumentStore entities. Because the service uses repository.save() with a client-supplied primary key, the POST create endpoint behaves as an implicit UPSERT operation. This enables overwriting existing DocumentStore objects. In multi-workspace or multi-tenant deployments, this can lead to cross-workspace object takeover and broken object-level authorization (IDOR), allowing an attacker to reassign or modify DocumentStore objects belonging to other workspaces. This vulnerability is fixed in 3.1.0. | |
| Title | Flowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object Takeover (IDOR) | |
| Weaknesses | CWE-284 CWE-639 CWE-915 |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-23T19:48:57.967Z
Updated: 2026-04-25T01:31:29.281Z
Reserved: 2026-04-18T14:01:46.802Z
Link: CVE-2026-41277
Updated: 2026-04-25T01:30:53.138Z
Status : Modified
Published: 2026-04-23T20:16:16.410
Modified: 2026-04-25T02:16:02.837
Link: CVE-2026-41277
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