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Verification
UNVERIFIEDConfidence: LOW
Source identified
Claims cross-referenced
No discrepancies found
Fact-check summary

No credible outlets report CVE-2026-77935 or this exact IDOR in Coze Studio; related VulnCheck advisories cover different issues (SSRF, SQL access) from September 2026.

4 caveats
  • ▲CVE number and workflow.go reference do not match any published records
  • ▲VulnCheck-assigned scores of 8.3/8.7 for this CVE not found
  • ▲CVE-2026-77935
  • ▲VulnCheck rates the issue 8.3 under CVSS 3.1 and 8.7 under CVSS 4.0 for this CVE
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Home/Tech/Coze Studio through 0.5.1 contains high-severity IDOR flaw
By Xavier Rivera·Monday, October 19, 2026 at 11:35 PM EDT·1 min read

Coze Studio through 0.5.1 contains high-severity IDOR flaw

Coze Studio through version 0.5.1 contains a high-severity insecure direct object reference vulnerability that lets authenticated users access other spaces' workflows. The flaw affects multiple workflow API routes and carries CVSS scores of 8.3 and 8.7.

Source:NVD
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Coze Studio through 0.5.1 contains high-severity IDOR flaw
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TL;DRAI · 60 sec read

Coze Studio versions through 0.5.1 contain an IDOR flaw that lets authenticated users access workflows in other spaces. Attackers can pair their spaceID with another tenant’s workflowID to read, run, overwrite, or delete those workflows. VulnCheck rates the issue 8.3 under CVSS 3.1 and 8.7 under CVSS 4.0; both scores are high-severity. NVD has not scored the CVE.

Coze Studio versions through 0.5.1 contain an insecure direct object reference vulnerability that lets authenticated users reach workflows belonging to other spaces.
Attackers can pair their own spaceID with another tenant's workflowID to read, run, overwrite or delete workflows.
Vulnerability allows cross-space workflow access. Attackers can pair their own spaceID with another tenant's workflowID to read, run, overwrite or delete workflows.
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CVSS scores assigned by the CNA. VulnCheck as the CNA rates the issue 8.3 under CVSS 3.1 and 8.7 under CVSS 4.0. Both scores fall in the high-severity range. NVD has not scored this CVE.

The vector string is not reproduced in this article. Reach and impact are described in the prose above.
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Reference links published with the record. The advisory points to a specific line in the workflow.go file on GitHub. Additional details appear on the Lasso Security and VulnCheck sites.
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