CVE-2026-86120

APITable through 1.13.0-beta.1 contains an incorrect authorization vulnerability in NodePermissionGuard that fails to enforce node-level access control when permission lookups throw exceptions. Attackers with valid Fusion API tokens can write attachments to private datasheets they have been explicitly denied access to by exploiting the unhandled exception in the permission guard.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/apitable/apitable
https://github.com/apitable/apitable/blob/88b24ce9f359/packages/room-server/src/fusion/middleware/guard/node.permission.guard.ts
https://github.com/apitable/apitable/issues/1814
https://www.vulncheck.com/advisories/apitable-through-1.13.0-beta.1-fail-open-authorization-in-the-fusion-api-node-permission-guard

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-05 10:16

Updated : 2026-09-08 19:20

NVD link : CVE-2026-86120

Mitre link : CVE-2026-86120

CVE.ORG link : CVE-2026-86120

JSON object : View

Products Affected

No product.

CWE

CWE-636

Not Failing Securely ('Failing Open')

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