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.
Recommendation
Update the @theia/ai-claude-code package to the latest compatible version. Followings are version details:
- Affected version(s): < 1.71.0
- Patched version(s): 1.71.0
References
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- [Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat - @theia/ai-code-completion - CVE-2026-22551
- [Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat - CVE-2026-22551
- [Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat - @theia/ai-chat-ui - CVE-2026-22551
- [Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat - @theia/ai-chat - CVE-2026-22551


