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.
[
{
"product": "Eclipse Equinox",
"vendor": "The Eclipse Foundation",
"versions": [
{
"lessThanOrEqual": "4.21",
"status": "unknown",
"version": "unspecified",
"versionType": "custom"
}
]
}
]