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CVE-2026-46580

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基金会开源的一个可扩展的开发环境框架。 Eclipse theia 1.71.0之前版本存在软件供应链问题漏洞，该漏洞源于工作区中.prompts/*.prompttemplate模式的提示符模板文件可能覆盖或扩展AI代理的系统提示符，攻击者可间接进行提示注入，结合其他AI聊天功能可能导致通过Markdown图像渲染进行数据渗漏或通过任务定义执行任意命令。

AI Predicted 8.1 Difficulty: Easy EPSS 0.51% · P41

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Theia < 1.71.0 affected
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I. Basic Information for CVE-2026-46580

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Theia versions prior to 1.71.0, files matching the pattern .prompts/*.prompttemplate in a workspace were automatically loaded and could override or extend the AI agent's system prompts. An attacker could craft a malicious repository containing prompt template files that, when the workspace was opened in Theia, replaced the AI's system instructions with attacker-controlled content (indirect prompt injection). Combined with other AI chat features available in untrusted workspaces, this enabled attack chains leading to data exfiltration via Markdown image rendering or arbitrary command execution via task definitions.
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 软件供应链问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse theia是美国Eclipse基金会开源的一个可扩展的开发环境框架。 Eclipse theia 1.71.0之前版本存在软件供应链问题漏洞，该漏洞源于工作区中.prompts/*.prompttemplate模式的提示符模板文件可能覆盖或扩展AI代理的系统提示符，攻击者可间接进行提示注入，结合其他AI聊天功能可能导致通过Markdown图像渲染进行数据渗漏或通过任务定义执行任意命令。
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 ~ 1.71.0 -

II. Public POCs for CVE-2026-46580

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III. Intelligence Information for CVE-2026-46580

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Vendor Advisories for CVE-2026-46580 (1)

Same Patch Batch · Eclipse Foundation · 2026-06-18 · 5 CVEs total

CVE-2026-44691 Eclipse theia 软件供应链问题漏洞
CVE-2026-22551 Eclipse theia 信息泄露漏洞
CVE-2026-44688 Eclipse theia 软件供应链问题漏洞
CVE-2026-9158 Eclipse 4diac FORTE 资源管理错误漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-46580

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