description: The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.
problem types: Information Exposure
affected:
{
product: Jira
vendor: Atlassian
versions:
lessThan: 8.4.0, status: affected, version: unspecified, versionType: custom
}