What is CVE-2026-86120?

CVE-2026-86120 is a medium-severity vulnerability in Apitable, classified under CWE-636. CVSS score: 4.3/10. Published 2026-09-05.

How severe is CVE-2026-86120?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Apitable

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 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Apitable

Weakness classification (CWE)

CWE-636

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-86120?: CVE-2026-86120 is a medium-severity vulnerability in Apitable, classified under CWE-636. CVSS score: 4.3/10. Published 2026-09-05.
How severe is CVE-2026-86120?: Medium severity. CVSS v3 base score is 4.3 out of 10.