CVE-2021-41034: Eclipse Che

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The build of some language stacks of Eclipse Che version 6 includes pulling some binaries from an unsecured HTTP endpoint. As a consequence the builds of such stacks are vulnerable to MITM attacks that allow the replacement of the original binaries with arbitrary ones. The stacks involved are Java 8 (alpine and centos), Android and PHP. The vulnerability is not exploitable at runtime but only when building Che.

Affected products

• Eclipse Che: from 6.0.0, before 7.0.0 (fixed in 7.0.0)

Published 2021-09-29. Last modified 2026-06-17.