CVE•Published 2026-06-18•Modified 2026-06-22•1 article on news•4 live references•NVD data

CVE-2026-44691Eclipse · Theia

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-829Inclusion of Functionality from Untrusted Control Sphere

Description

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.

Timeline

Published 2026-06-18

Modified 2026-06-22

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-44691

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Eclipse Theia"

All exposed Eclipse Theia instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Theia"

HTTP body or banner mentions "Theia" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-44691