CVE-2026-77935

Coze Studio through 0.5.1 Cross-Space Workflow IDOR via Workflow API Handlers

Published Oct 20, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 20, 2026, 1:29 PM
Reserved
Aug 21, 2026, 5:52 PM
Status
Awaiting Analysis
Published
Oct 20, 2026, 1:17 AM
Modified
Oct 20, 2026, 8:06 PM