description: REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.
problem types: Enumeration
affected:
{
product: Jira Server
vendor: Atlassian
versions:
lessThan: 8.5.14, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 8.6.0, versionType: custom
lessThan: 8.13.6, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 8.14.0, versionType: custom
lessThan: 8.16.1, status: affected, version: unspecified, versionType: custom
}
{
product: Jira Data Center
vendor: Atlassian
versions:
lessThan: 8.5.14, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 8.6.0, versionType: custom
lessThan: 8.13.6, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: affected, version: 8.14.0, versionType: custom
lessThan: 8.16.1, status: affected, version: unspecified, versionType: custom
}
