CVE-2026-22551
Medium · 6.5CVSS
6.5
EPSS
0.3%
Published
Jun 18, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @theia/ai-chat | 0 | 1.71.0 |
| npm | @theia/ai-chat-ui | 0 | 1.71.0 |
| npm | @theia/ai-claude-code | 0 | 1.71.0 |
| npm | @theia/ai-code-completion | 0 | 1.71.0 |
| npm | @theia/ai-core | 0 | 1.71.0 |
| npm | @theia/ai-editor | 0 | 1.71.0 |
| npm | @theia/ai-ide | 0 | 1.71.0 |
Related vulnerabilities
- GHSA-qwjm-9c66-w4q4 [Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat Same vulnerability
- GHSA-m973-pr9r-hp2w [Eclipse Theia] Indirect Prompt Injection via Auto-Loaded Workspace Prompt Template Files… Also affects @theia/ai-chat
- GHSA-3jww-hxqj-wfq2 [Eclipse Theia] Indirect Prompt Injection via Adversarial Workspace File and Directory… Also affects @theia/ai-chat
- CVE-2026-46580 In Eclipse Theia versions prior to 1.71.0, files matching the pattern… Also affects @theia/ai-chat
- CVE-2026-44688 In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and… Also affects @theia/ai-chat
- CVE-2026-105777 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before… CWE-201
- CVE-2026-107315 pgjdbc, the PostgreSQL JDBC Driver, versions 42.7.4 through 42.7.13 pads a value that is… CWE-201
- CVE-2026-62088 Insertion of Sensitive Information Into Sent Data vulnerability in 10up ElasticPress… CWE-201