All Xtext & Xtend versions prior to 2.18.0 were built using HTTP instead of HTTPS file transfer and thus the built artifacts may have been compromised.
[
{
"product": "Eclipse Xtext",
"vendor": "The Eclipse Foundation",
"versions": [
{
"lessThan": "2.18.0",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]