CVE-2026-22551
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk8th percentile — higher than 8% of all known CVEs
Summary
In Eclipse Theia versions prior to 1.71.0, the AI chat rendered Markdown image tags from AI responses, triggering unrestricted HTTP requests to external URLs. Combined with prompt injection in a malicious workspace, an attacker could induce the AI agent to construct image URLs encoding sensitive information.
Risk Assessment
The organization may be exposed to the leakage of sensitive data to attacker-controlled servers, potentially leading to serious security breaches.
Recommendation
It is recommended to upgrade to version 1.71.0 or later to utilize the introduced workspace trust enforcement mechanism that disables AI features in untrusted environments.
Original NVD description (English source)
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.