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CVE-2026-22551

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之前版本存在安全漏洞，该漏洞源于AI聊天渲染Markdown图片标签，触发HTTP请求到任意外部URL，结合恶意工作区中的提示注入，可能导致攻击者诱导AI代理构造编码敏感信息的图片URL，并将数据泄露到攻击者控制的服务器。

AI Predicted 8.1 Difficulty: Easy EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Theia < 1.71.0 affected
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I. Basic Information for CVE-2026-22551

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, the AI chat rendered Markdown image tags from AI responses, triggering HTTP requests to arbitrary external URLs without restriction. Combined with prompt injection in a malicious workspace, an attacker could induce the AI agent to construct image URLs encoding sensitive information from the workspace or conversation context, exfiltrating it to attacker-controlled servers. The workspace trust enforcement introduced in v1.71.0 mitigates the documented attack chain by disabling AI features in untrusted workspaces.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过发送数据的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse theia 信息泄露漏洞
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之前版本存在安全漏洞，该漏洞源于AI聊天渲染Markdown图片标签，触发HTTP请求到任意外部URL，结合恶意工作区中的提示注入，可能导致攻击者诱导AI代理构造编码敏感信息的图片URL，并将数据泄露到攻击者控制的服务器。
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-2026-22551

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III. Intelligence Information for CVE-2026-22551

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Other References for CVE-2026-22551 (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-2026-46580 Eclipse theia 软件供应链问题漏洞
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-201

V. Comments for CVE-2026-22551

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