CVE-2026-55413 ToolJet - Marketplace Plugin Poisoning Enables Instance-Wide Remote Code Execution
Authenticated builders can inject malicious JavaScript into shared marketplace plugins, enabling server-side remote code execution across the entire instance.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55413?
CVE-2026-55413 is a critical code injection vulnerability in ToolJet, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ToolJet is the open-source foundation am AI-native platform for building and deploying internal tools, workflows and AI agents. Prior to 3.20.178-lts, any authenticated user with builder role (free tier) can overwrite a globally-shared marketplace plugin with arbitrary JavaScript that executes server-side with full Node.js access (require, process). The malicious code runs whenever any user on the instance triggers a query using that plugin — achieving both RCE and supply-chain compromise of the entire ToolJet deployment. This vulnerability is fixed in 3.20.178-lts.
Weakness: CWE-94
Which versions are affected by CVE-2026-55413?
How do I fix CVE-2026-55413?
No fix has been published for CVE-2026-55413 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-55413 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55413 exists.
Sources
Also known as GHSA-jgmf-cw3v-r98x.