Security advisory

{
  "id": "87380e7793a8e30c8a846c5c5fc5b1dcc2692cb8e427efbec67efc9a80e666bc",
  "url": "https://osv.dev/vulnerability/CVE-2026-44691",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-44691",
    "summary": "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.",
    "evidence": "osv:CVE-2026-44691",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-44691",
      "aliases": [
        "CVE-2026-44691",
        "GHSA-g9jw-92q7-g7fj"
      ],
      "metrics": [
        {
          "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-theia/theia",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d9db3eac9a3426256ef1067878b96e8e3db43743"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.69.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.69.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.68.0",
            "v1.67.0",
            "v1.66.0",
            "v1.65.0",
            "v1.64.0",
            "v1.63.0",
            "v1.62.0",
            "v1.61.0",
            "v1.60.0",
            "v1.59.0",
            "v1.58.0",
            "v1.57.0",
            "v1.55.0",
            "v1.56.0",
            "v1.54.0",
            "v1.53.0",
            "v1.52.0",
            "v1.50.0",
            "v1.49.0",
            "v1.48.0",
            "v1.47.0",
            "v1.46.0",
            "v1.45.0",
            "v1.44.0",
            "v1.43.0",
            "v1.42.0",
            "v1.41.0",
            "v1.40.0",
            "v1.39.0",
            "v1.38.0",
            "v1.37.0",
            "v1.36.0",
            "v1.35.0",
            "v1.34.0",
            "v1.33.0",
            "v1.32.0",
            "v1.31.0",
            "v1.30.0",
            "v1.29.0",
            "v1.28.0",
            "v1.27.0",
            "v1.26.0",
            "v1.25.0",
            "v1.24.0",
            "v1.23.0",
            "v1.22.1",
            "v1.22.0",
            "v1.21.0",
            "v1.20.0",
            "v1.17.0",
            "v1.16.0",
            "v1.15.0",
            "v1.14.0",
            "v1.13.0",
            "1.13.0",
            "v1.12.0",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.16.0",
            "v0.15.0",
            "v0.14.0",
            "v0.13.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.0",
            "v0.5.0",
            "v0.4.0",
            "v0.3.19",
            "v0.3.18",
            "v0.3.17",
            "v0.3.16",
            "v0.3.15",
            "v0.3.14",
            "v0.3.13",
            "v0.3.12",
            "v0.3.11",
            "v0.3.10",
            "v0.3.9",
            "v0.3.8",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "0.0.1-alpha.2",
            "0.0.1-alpha.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44691.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.323754143Z",
      "provider": "osv",
      "references": [
        "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44691.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-44691",
        "https://github.com/eclipse-theia/theia"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-829"
        ],
        "cna_assigner": "eclipse",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44691.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-44691",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497324,
  "published_at": "2026-06-18T14:35:25.486+00:00"
}