CVE-2026-118685
ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| ToolJet ToolJet |
≥ 3.20.2-lts; < 3.20.242-lts (affected, semver) 3.20.242-lts (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.9 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2
exploit · ADP: CISA-ADP
References
- https://github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2CNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguardCNA: VulnCheck · third-party-advisory
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2ADP: CISA-ADP · exploit
For agents and automation
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Endpoints and access details
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