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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Eclipse Foundation | Eclipse Theia | < 1.71.0 | 1.71.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | eclipse | No fix yet | — |
| Ubuntu 16.04 LTS | eclipse | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | @theia/ai-chat | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-chat-ui | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-claude-code | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-code-completion | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-core | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-editor | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |
| npm | @theia/ai-ide | < 1.71.0 | 1.71.0 | GHSA-qwjm-9c66-w4q4 |