{"id":"GHSA-g9jw-92q7-g7fj","summary":"[Eclipse Theia] Arbitrary Command Execution via Untrusted Workspace Task Definitions","details":"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.","aliases":["CVE-2026-44691"],"modified":"2026-09-10T03:51:08.792591255Z","published":"2026-06-18T18:35:23Z","database_specific":{"github_reviewed_at":"2026-06-19T19:20:20Z","nvd_published_at":"2026-06-18T16:16:54Z","cwe_ids":["CWE-829"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44691"},{"type":"WEB","url":"https://github.com/eclipse-theia/theia/issues/16889"},{"type":"WEB","url":"https://github.com/eclipse-theia/theia/pull/16917"},{"type":"PACKAGE","url":"https://github.com/eclipse-theia/theia"},{"type":"WEB","url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116"},{"type":"WEB","url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/331"}],"affected":[{"package":{"name":"@theia/debug","ecosystem":"npm","purl":"pkg:npm/%40theia/debug"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g9jw-92q7-g7fj/GHSA-g9jw-92q7-g7fj.json"}},{"package":{"name":"@theia/task","ecosystem":"npm","purl":"pkg:npm/%40theia/task"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g9jw-92q7-g7fj/GHSA-g9jw-92q7-g7fj.json"}},{"package":{"name":"@theia/workspace","ecosystem":"npm","purl":"pkg:npm/%40theia/workspace"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.69.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g9jw-92q7-g7fj/GHSA-g9jw-92q7-g7fj.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}