The API in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to determine if a Jira project key exists or not via an information disclosure vulnerability.
[
{
"product": "Jira Server",
"vendor": "Atlassian",
"versions": [
{
"lessThan": "8.6.0",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]