Medium severity6.5NVD Advisory· Published Oct 28, 2026

CVE-2026-118685

Description

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.

Patches

Vulnerability mechanics

References

github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2nvd
www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguardnvd

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