ubuntu-cve-2026-44691
Vulnerability from osv_ubuntu
Published
2026-06-18 16:16
Modified
2026-06-24 09:02
Summary
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.

Severity
8.4 (High)
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
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "eclipse",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "eclipse-jdt",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "eclipse-pde",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "eclipse-platform",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "eclipse-platform-data",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "eclipse-rcp",
            "binary_version": "3.8.1-8"
          },
          {
            "binary_name": "libequinox-osgi-java",
            "binary_version": "3.8.1-8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "eclipse",
        "purl": "pkg:deb/ubuntu/eclipse@3.8.1-8?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-8"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "eclipse",
            "binary_version": "3.8.1-11"
          },
          {
            "binary_name": "eclipse-jdt",
            "binary_version": "3.8.1-11"
          },
          {
            "binary_name": "eclipse-pde",
            "binary_version": "3.8.1-11"
          },
          {
            "binary_name": "eclipse-platform",
            "binary_version": "3.8.1-11"
          },
          {
            "binary_name": "eclipse-platform-data",
            "binary_version": "3.8.1-11"
          },
          {
            "binary_name": "eclipse-rcp",
            "binary_version": "3.8.1-11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "eclipse",
        "purl": "pkg:deb/ubuntu/eclipse@3.8.1-11?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-10",
        "3.8.1-11"
      ]
    }
  ],
  "aliases": [],
  "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\u0027s 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.",
  "id": "UBUNTU-CVE-2026-44691",
  "modified": "2026-06-24T09:02:13Z",
  "published": "2026-06-18T16:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-44691"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-44691"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-44691"
  ]
}



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Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.