High, CVSS 8.4npmAmendedPublished
[Eclipse Theia] Arbitrary Command Execution via Untrusted Workspace Task Definitions
CVE-2026-44691 · GHSA-g9jw-92q7-g7fj
- Affected
- npm @theia/task < 1.69.0
- Fixed in
- 1.69.0· Vendor fix available
- Issue
- In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g. .theia/tasks.json, .vscode/tasks.json) could be executed without requiring workspace trust. An attacker could craft a malicious repository that, when cloned and opened in Theia, leads to execution of arbitrary commands with the user's privileges. In combination with AI chat features and a workspace .theia/settings.json that disabled tool confirmation, this could be triggered automatically by sending a message in the AI chat.
Recommended action: Upgrade to 1.69.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.