CVE-2026-44691

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*

History

22 Jun 2026, 19:47

Type	Values Removed	Values Added
References	~~() https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116 -~~	() https://gitlab.eclipse.org/security/cve-assignment/-/work_items/116 - Patch, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
CPE		cpe:2.3:a:eclipse:theia::::::::
First Time		Eclipse theia Eclipse

19 Jun 2026, 06:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-18 16:16

Updated : 2026-06-22 19:47

NVD link : CVE-2026-44691

Mitre link : CVE-2026-44691

CVE.ORG link : CVE-2026-44691

JSON object : View

Products Affected

eclipse

theia

CWE

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

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