high8.8
CVE-2026-44691
In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @theia/debug | < 1.69.0 | 1.69.0 |
| npm | @theia/task | < 1.69.0 | 1.69.0 |
| npm | @theia/workspace | < 1.69.0 | 1.69.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Eclipse | Theia | before 1.69.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-g9jw-92q7-g7fj
- https://nvd.nist.gov/vuln/detail/CVE-2026-44691
- https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116
- https://github.com/eclipse-theia/theia/issues/16889
- https://github.com/eclipse-theia/theia/pull/16917
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/331