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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (35.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/ToolJet/ToolJet/security/advisories/GHSA-xr3w-r926-xfmm (vendor-advisory)
- www.vulncheck.com/advisories/tooljet-before-3.16.208-cross-tenant-database-mani… (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.