PT-2026-72042 · Eclipse Foundation+1 · Eclipse Theia+1

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CVE-2026-19884

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Published

2026-08-14

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Updated

2026-08-15

CVSS v4.0

8.4

High

VectorAV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions Eclipse Theia versions prior to 1.70.0
Description Opening a folder in applications built on Theia that include git integration, such as the Theia IDE, triggers source control integration without requiring the user to trust the folder first. The @theia/git extension and the builtin VS Code git extension execute commands like git status upon repository detection. Because git respects repository-local configurations, an attacker can provide a .git/config file containing a malicious core.fsmonitor setting or similar hook-like configuration. This allows for the execution of arbitrary commands with the privileges of the user without a confirmation prompt, which can be achieved by cloning and opening an attacker-supplied repository.
Recommendations Update Eclipse Theia to version 1.70.0 or later.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-19884

Affected Products

Eclipse Theia
Vscode