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CVE-2026-82217

Quick assessment

Affected
Eclipse Foundation Eclipse Theia
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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基金会的一个可扩展的集成开发环境平台。 Eclipse Theia 1.73.0至1.75.0之前版本存在路径遍历漏洞，该漏洞源于AI“Agent Mode”文件变更工具解析模型提供的文件路径时未进行工作区包含检查，可能导致写入或删除工作区之外的文件，进而升级为后端代码执行。

CVSS 8.8 · High EPSS 0.62% · P49

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Theia 1.73.0< 1.75.0 affected
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I. Basic Information for CVE-2026-82217

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools (writeFileContent, suggestFileContent, and the replacement and state helpers) resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc, an absolute path, or a ~-expanded path could therefore write or delete files outside the workspace with the privileges of the Theia backend OS user. Because the path argument is influenced by model output, it can be steered through indirect prompt injection, and in Agent Mode writes are applied without a confirmation dialog. Writing to a host-executed file such as a shell startup file or ~/.ssh/authorized_keys can escalate to code execution on the backend.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Theia 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Theia是美国Eclipse基金会的一个可扩展的集成开发环境平台。 Eclipse Theia 1.73.0至1.75.0之前版本存在路径遍历漏洞，该漏洞源于AI“Agent Mode”文件变更工具解析模型提供的文件路径时未进行工作区包含检查，可能导致写入或删除工作区之外的文件，进而升级为后端代码执行。
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 1.73.0 ~ 1.75.0 -

II. Public POCs for CVE-2026-82217

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III. Intelligence Information for CVE-2026-82217

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Vendor Advisories for CVE-2026-82217 (1)

IV. Related Vulnerabilities

Same product: Eclipse Theia
Same vendor: Eclipse Foundation
Same weakness: CWE-22

V. Comments for CVE-2026-82217

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