CriticalVulnerability

CVE-2026-55413: ToolJet marketplace plugin overwrite allows server-side code execution

Source: NVD(opens in a new tab)
Identifier: CVE-2026-55413
Published: June 25, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.3%

Summary

ToolJet, an open-source platform for building internal tools, workflows and AI agents, is affected by CVE-2026-55413 in versions before 3.20.178-lts. Any authenticated user with the builder role, including on the free tier, can overwrite a globally shared marketplace plugin with arbitrary JavaScript. That code runs server-side with full Node.js access whenever any user on the instance triggers a query using the plugin, enabling remote code execution and supply-chain compromise of the deployment.

Mitigation

Fixed in 3.20.178-lts.

Details

Scores and exploitation

EPSS: 0.3%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 9, 2026.
Disclosure date: June 25, 2026

Weaknesses and techniques

Weakness (CWE): CWE-94
Attack pattern (CAPEC): CAPEC-242
AI threat technique (MITRE ATLAS): AML.T0010

Classification

Attack type: Supply chain,
Other
Attack sophistication: Trivial
AI component targeted: Plugin
Impact: Confidentiality,
Integrity,
Availability
Labels: security,
industry

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-55413

First tracked: June 25, 2026 at 02:11 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Summary

Mitigation

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