What is CVE-2026-82870?

CVE-2026-82870 is a critical-severity vulnerability in Tooljet, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.6/10. Published 2026-08-31.

How severe is CVE-2026-82870?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Auth bypass in Tooljet

CVE-2026-82870

ToolJet before v3.16.208 fails to validate organizationId ownership in database write and destroy routes, allowing any builder-role user to create, alter, or drop tables in other organizations' databases. Attackers can exploit missing organization-resolving guards to permanently delete tables, insert arbitrary data, and modify schemas across tenant boundaries on shared instances.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (12.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H.

Affected products

Tooljet

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-82870?: CVE-2026-82870 is a critical-severity vulnerability in Tooljet, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.6/10. Published 2026-08-31.
How severe is CVE-2026-82870?: Critical severity. CVSS v3 base score is 9.6 out of 10.