Heron versions <= 0.20.4-incubating allows CRLF log injection because of the lack of escaping in the log statements. Please update to version 0.20.5-incubating which addresses this issue.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Heron (Incubating)",
"versions": [
{
"version": "Apache Heron 0.20.4-incubating",
"status": "affected",
"lessThanOrEqual": "0.20.4-incubating",
"versionType": "custom"
}
]
}
]