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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
coze-dev coze-studio unaffected
Version Status Constraints
0 affected ≤ 0.5.1

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Coze Subscribe
Coze Studio Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/coze-dev/coze-studio/blob/72cecff858a5a18662c5d9d1a4764c53ebc98317/backend/application/workflow/workflow.go#L303 cve-icon cve-icon
https://www.lasso.security/vulnerability-database/cve-2026-77935 cve-icon cve-icon
https://www.vulncheck.com/advisories/coze-studio-through-0.5.1-cross-space-workflow-idor-via-workflow-api-handlers cve-icon cve-icon
History

Tue, 20 Oct 2026 01:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Coze Studio through 0.5.1 Cross-Space Workflow IDOR via Workflow API Handlers
First Time appeared Coze
Coze coze Studio
Weaknesses CWE-639
CPEs cpe:2.3:a:coze:coze_studio:*:*:*:*:*:*:*:*
Vendors & Products Coze
Coze coze Studio
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-20T00:46:13.474Z

Reserved: 2026-08-21T17:52:36.080Z

Link: CVE-2026-77935

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T01:17:19.970

Modified: 2026-10-20T01:17:19.970

Link: CVE-2026-77935

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses