GHSA-g9jw-92q7-g7fj

Suggest an improvement
Source
https://github.com/advisories/GHSA-g9jw-92q7-g7fj
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-g9jw-92q7-g7fj/GHSA-g9jw-92q7-g7fj.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-g9jw-92q7-g7fj
Aliases
Published
2026-06-18T18:35:23Z
Modified
2026-09-10T03:51:08Z
Severity
  • 8.4 (High) CVSS_V4 - 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 CVSS Calculator
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.

Database specific
{
    "cwe_ids":  [
        "CWE-829"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-19T19:20:20Z",
    "nvd_published_at":  "2026-06-18T16:16:54Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / @theia/debug

Package

Name
@theia/debug
View open source insights on deps.dev
Purl
pkg:npm/%40theia/debug

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
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"

npm / @theia/task

Package

Name
@theia/task
View open source insights on deps.dev
Purl
pkg:npm/%40theia/task

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
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"

npm / @theia/workspace

Package

Name
@theia/workspace
View open source insights on deps.dev
Purl
pkg:npm/%40theia/workspace

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
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"