8.4
HIGH CVSS 4.0
CVE-2026-44688
Eclipse Theia Indirect Prompt Injection
Description

In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as part of its prompt context without distinguishing them from system instructions. An attacker could craft a malicious repository with adversarial directory or file names that, when analyzed by the AI agent, would cause the agent to follow attacker-controlled instructions (indirect prompt injection). Combined with other AI chat features available in untrusted workspaces, this enabled attack chains leading to data exfiltration via Markdown image rendering or arbitrary command execution via task definitions.

INFO

Published Date :

June 18, 2026, 2:22 p.m.

Last Modified :

June 18, 2026, 2:22 p.m.

Remotely Exploit :

No

Source :

eclipse
Affected Products

The following products are affected by CVE-2026-44688 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Eclipse theia
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH e51fbebd-6053-4e49-959f-1b94eeb69a2c
Solution
Update Eclipse Theia to version 1.71.0 or later to address prompt injection vulnerabilities.
  • Update Eclipse Theia to version 1.71.0.
  • Avoid processing untrusted workspace files.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-44688 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.