CVE-2026-77935 Coze Studio - Broken Access Control

Coze Studio <= 0.5.1 contains an insecure direct object reference vulnerability in workflow.go, letting authenticated users access and manipulate other tenants' workflows by supplying foreign workflowIDs.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
20 October 2026
Updated
20 October 2026
Weakness
CWE-639

Vendor fix

Update to the latest version where access control is properly enforced.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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