CVE-2026-86120

MEDIUM 4.3

APITable through 1.13.0-beta.1 Fail-Open Authorization in the Fusion API Node Permission Guard

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-636
Vendor	apitable
Product	apitable
Published	Sep 5, 2026
Last Updated	Sep 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

apitable / apitable

0 ≤ 1.13.0-beta.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 George Chen