Auth bypass in Tooljet
CVE-2026-118685
ToolJet from 3.20.2-lts before 3.20.242-lts contains an authorization bypass in SignupDisableGuard, which treats the string signup setting 'false' as truthy, so instance-level signup restrictions are not enforced. Unauthenticated attackers can send POST requests to /api/signup without an organizationId to create an account, join the default workspace, and receive a valid session.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2 (vendor-advisory)
- www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-118685?
- CVE-2026-118685 is a medium-severity vulnerability in Tooljet, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-10-28.
- How severe is CVE-2026-118685?
- Medium severity. CVSS v3 base score is 6.5 out of 10.