Insecure Direct Obj Ref in Coze Studio <=0.5.1 Workflow Mgmt Allows Data Leakage
CVE-2026-77935 Published on October 20, 2026
Coze Studio through 0.5.1 Cross-Space Workflow IDOR via Workflow API Handlers
Coze Studio through 0.5.1 contains an insecure direct object reference vulnerability in workflow.go that allows authenticated users to access other spaces' workflows by supplying foreign workflowIDs. Attackers can pair their own spaceID with another tenant's workflowID in save, update_meta, batch_delete, canvas, test_run and nodeDebug routes to read, run, overwrite or delete workflows.
Vulnerability Analysis
CVE-2026-77935 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is an Insecure Direct Object Reference / IDOR Vulnerability?
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CVE-2026-77935 has been classified to as an Insecure Direct Object Reference / IDOR vulnerability or weakness.
Products Associated with CVE-2026-77935
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Affected Versions
coze-dev coze-studio:- Before and including 0.5.1 is affected.