CVE-2026-44691CWE-829

In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g

High · published June 18, 2026

CVSS v4.0
8.4
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
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
EPSS
0.00408 · 34.0th percentile
Weakness
CWE-829 · Inclusion of Functionality from Untrusted Control Sphere
Published
2026-06-18T14:35Z
EPSS history
Timeline
  • 18 JUN 14:35Z
    In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g
    cvelistv5