---
id: CVE-2026-86120
title: >-
  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
summary: >-
  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 …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-636
vendor: apitable
product: apitable
affected:
  - apitable <= 1.13.0-beta.1
published: '2026-09-05'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:45.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86120'
references:
  - url: 'https://github.com/apitable/apitable'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/apitable/apitable/blob/88b24ce9f359/packages/room-server/src/fusion/middleware/guard/node.permission.guard.ts
    label: disclosure@vulncheck.com
  - url: 'https://github.com/apitable/apitable/issues/1814'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/apitable-through-1.13.0-beta.1-fail-open-authorization-in-the-fusion-api-node-permission-guard
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00366
epssPercentile: 0.27816
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T18:10:53.124006Z'
ingestedAt: '2026-09-06T07:51:56.158Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.