CVE-2026-118685— ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard

Quick assessment

Affected

ToolJet ToolJet

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ToolJet 在从 3.20.2-lts 到 3.20.242-lts（不含）的版本中，存在一个授权绕过漏洞。该漏洞源于组件将字符串形式的注册设置值错误地判定为真值（truthy），导致实例级别的注册限制无法生效。未认证的攻击者可以向接口发送不包含的 POST 请求，从而创建账户、加入默认工作区，并获取有效的会话令牌。

CVSS 6.5 · Medium Updated Oct 29, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

Vendor	Product	Version Range	Status
ToolJet	ToolJet	`3.20.2-lts< 3.20.242-lts`	affected
		`3.20.242-lts`	unaffected

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Vulnerability Information

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Vulnerability Title

ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制不正确

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
ToolJet	ToolJet	3.20.2-lts ~ 3.20.242-lts	-

II. Public POCs for CVE-2026-118685

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-118685

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Other References for CVE-2026-118685 (2)

https://github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2 vendor-advisory
https://www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguard third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-118685

IV. Related Vulnerabilities

Same product: ToolJet

Same vendor: ToolJet

Same weakness: CWE-863