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CVE-2026-19884

Quick assessment

Affected
Eclipse Foundation Eclipse Theia
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Theia是美国Eclipse基金会开源的一个可构建云端及桌面集成开发环境的开发框架。 Eclipse Theia 1.69.0及之前版本存在安全漏洞，该漏洞源于打开文件夹时未要求用户信任文件夹即启动源代码控制集成，运行git命令时可能执行攻击者控制的配置，可能导致任意命令执行。

CVSS 8.4 · High EPSS 0.13% · P3

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Theia < 1.70.0 affected
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I. Basic Information for CVE-2026-19884

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Theia versions up to and including 1.69.0, opening a folder starts source control integration without requiring the user to trust the folder first. This affects applications built on Theia that include the git integration, such as the Theia IDE. Both Theia's own `@theia/git` extension and the builtin VS Code `git` extension run git commands such as `git status` as soon as a repository is detected. Since git honors repository-local configuration, a folder containing an attacker-controlled `.git/config` with `core.fsmonitor` (or a comparable hook-like setting) causes the configured command to be executed. The configuration can be delivered by burying a bare repository inside a regular repository (OVE-20210718-0001), so cloning an attacker-supplied repository and opening it in a Theia-based application is sufficient to execute arbitrary commands with the privileges of the user, without any confirmation prompt. As of 1.70.0, plugins that declare `capabilities.untrustedWorkspaces.supported: false`, which includes the builtin git extension, are no longer loaded or activated in an untrusted workspace, and the deprecated `@theia/git` extension has been removed, so no git command is executed against an untrusted folder.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
从非可信控制范围包含功能例程
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Theia 配置错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Theia是美国Eclipse基金会开源的一个可构建云端及桌面集成开发环境的开发框架。 Eclipse Theia 1.69.0及之前版本存在安全漏洞，该漏洞源于打开文件夹时未要求用户信任文件夹即启动源代码控制集成，运行git命令时可能执行攻击者控制的配置，可能导致任意命令执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse Theia 0 ~ 1.70.0 -

II. Public POCs for CVE-2026-19884

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6017 chars
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III. Intelligence Information for CVE-2026-19884

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Patches & Fixes for CVE-2026-19884 (1)

Vendor Advisories for CVE-2026-19884 (2)

IV. Related Vulnerabilities

Same product: Eclipse Theia
Same vendor: Eclipse Foundation
Same weakness: CWE-829

V. Comments for CVE-2026-19884

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