What is CVE-2026-82874?

CVE-2026-82874 is a critical-severity vulnerability in Tooljet, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.9/10. Published 2026-08-31.

How severe is CVE-2026-82874?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Auth bypass in Tooljet

CVE-2026-82874

ToolJet before v3.16.208 fails to validate that authenticated users belong to the organization specified in the organizationId path parameter of tooljet-db endpoints, allowing any Builder user to read, modify, and delete tables across tenant boundaries. Attackers can extract victim organization IDs from public app endpoints, then exploit schema operation endpoints to disclose table schemas, plant malicious tables, corrupt existing schemas, or permanently destroy victim data without any relationship to the target organization.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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-2026-82874?: CVE-2026-82874 is a critical-severity vulnerability in Tooljet, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.9/10. Published 2026-08-31.
How severe is CVE-2026-82874?: Critical severity. CVSS v3 base score is 9.9 out of 10.