Authentication Bypass in ToolJet Onboarding Signup Endpoint
CVE-2026-126795

6.9MEDIUM

Key Information:

Vendor

ToolJet

Status
Tooljet
Vendor
CVE Published:
12 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-126795?

A vulnerability exists in ToolJet's Onboarding Signup Endpoint that allows unauthorized access due to missing authentication in the 'activateUserWithPassword' function within the 'util.service.ts' file. By manipulating the 'email' argument, attackers can exploit this weakness remotely, gaining access without proper authentication checks. To mitigate this risk, users should upgrade to version 3.21.94-beta, which contains a fix that addresses this specific issue. The vendor was promptly informed of this vulnerability, ensuring that users can secure their applications effectively.

Affected Version(s)

ToolJet 3.20.256-lts

ToolJet 3.21.93-beta

ToolJet 3.21.94-beta

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-126795 - Proof of Concept

References

https://vuldb.com/vuln/435971
vdb-entrytechnical-description
https://vuldb.com/vuln/435971/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-126795
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

xianggudahundun (VulDB User)
VulDB CNA Team
.