CVE-2021-41033: Eclipse Equinox

High severity, CVSS 8.1. EPSS: 1.1% chance of exploitation in the next 30 days.

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Affected products

• Eclipse Equinox: before 4.21 (fixed in 4.21); version 4.21 only

Published 2021-09-13. Last modified 2026-06-17.