# CVE-2026-118685: ToolJet authorization bypass in SignupDisableGuard

Source: https://junglewise.ai/threats/cve-2026-118685-tooljet-from-3-20-2-lts-before-3-20-242-lts-contains-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2026-118685 · Severity: medium · CVSS 6.5 · Published 2026-10-28

ToolJet is a low-code platform that allows organizations to build internal tools and manage user access through instance-level signup controls. An authentication bypass flaw allows unauthenticated attackers to register new accounts even when the administrator has disabled signup, gaining immediate access to the default workspace and its resources. This could expose sensitive applications and data to unauthorized users.

## Quick answers

**Is CVE-2026-118685 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118685 being exploited in the wild.

**How severe is CVE-2026-118685?** Medium severity, with a CVSS score of 6.5, published 28 October 2026.

**Which products and versions are affected?** ToolJet 3.20.2-lts before 3.20.242-lts.

**Is there a fix for CVE-2026-118685?** Yes: fixed in 3.20.242-lts. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-118685 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-118685?** Check whether you run ToolJet at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 3.20.242-lts

## Technical details

The SignupDisableGuard authorization check incorrectly evaluated the signup setting as a string rather than a boolean; the value 'false' is truthy in JavaScript, allowing the bypass. Unauthenticated POST requests to /api/signup without an organizationId parameter bypass the restriction and create accounts automatically joined to the default workspace with an active session token. No user interaction or authentication is required to exploit this flaw.

## Affected products

- ToolJet 3.20.2-lts before 3.20.242-lts

## Timeline

- 2026-10-13: disclosed
- 2026-10-28: advisory

## References

- [https://github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2](https://github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2)
- [https://www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguard](https://www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguard)