CVE-2026-126795: ToolJet missing authentication in onboarding signup endpoint

CVE-2026-126795 · Severity: high · CVSS 7.3 · Published 2026-11-12

ToolJet is an open-source platform for building internal tools and dashboards. A flaw in the user signup/onboarding process allows attackers to manipulate email parameters to bypass authentication and activate accounts without proper credentials. This could lead to unauthorized access to internal applications built with ToolJet.

Technologies: ToolJet. Vendors: ToolJet.

Quick answers

Is CVE-2026-126795 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-126795 being exploited in the wild.
How severe is CVE-2026-126795?
High severity, with a CVSS score of 7.3, published 12 November 2026.
Which products and versions are affected?
ToolJet up to 3.20.256-lts and 3.21.93-beta.
Is there a fix for CVE-2026-126795?
Yes: fixed in 3.21.94-beta (commit af8f17a745621ae418f1743440f63d315e8b8643). Until then: Upgrade to version 3.21.94-beta or later immediately. Until patching is possible, restrict network access to the onboarding signup endpoint or disable public signup functionality.</anigation> <parameter name="timeline">[{"kind":"disclosed","at":"2026-11-12","note":"Vulnerability publicly disclosed"},{"kind":"patched","at":"2026-11-12","note":"Patch released as version 3.21.94-beta"}] Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126795 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-126795?
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: 3.21.94-beta (commit af8f17a745621ae418f1743440f63d315e8b8643)

Upgrade to version 3.21.94-beta or later immediately. Until patching is possible, restrict network access to the onboarding signup endpoint or disable public signup functionality.</anigation> <parameter name="timeline">[{"kind":"disclosed","at":"2026-11-12","note":"Vulnerability publicly disclosed"},{"kind":"patched","at":"2026-11-12","note":"Patch released as version 3.21.94-beta"}]

Technical details

A missing authentication vulnerability exists in the activateUserWithPassword function within the onboarding signup endpoint (server/src/modules/onboarding/util.service.ts). By manipulating the email argument, an attacker can trigger missing authentication checks during account activation. The attack is network-accessible, requires no prior authentication or user interaction, and allows unauthorized account activation.

Affected products

  • ToolJet ToolJet up to 3.20.256-lts and 3.21.93-beta

References

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