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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/ToolJet/ToolJet/security/advisories/GHSA-w3hx-rg9g-mw5c (vendor-advisory)
- www.vulncheck.com/advisories/tooljet-before-3.16.208-cross-tenant-authorization… (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.