by Kastro
Paper/Archive/CVE-2026-55413

CVE-2026-55413

ToolJet ToolJet — ToolJet - Marketplace Plugin Poisoning Enables Instance-Wide Remote Code Execution

EPSS 0.3%public exploitCVSS 9.4
critical.is priorityof 100
43
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 24.7.247 × 204.9Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
ToolJet< 3.20.178-lts–CNA

Scores by source

GitHub_M (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/ToolJet/ToolJet/security/advisories/GHSA-jgmf-cw3v-r98x