What this endpoint does

Performs a HEAD request on the vulnerability risk list to retrieve the ETag and metadata without downloading the full file. Use in polling workflows to check if the list has changed before fetching with Vulnerability: Download Risk List. Pass the same list and format parameters you would use for the GET — each combination has a distinct ETag. Vulnerability lists support one additional format: csv/splunk+cpe (adds Common Platform Enumeration strings).

Response data

Returns HTTP headers only — no body. ETag is MD5 for standard RF-generated lists or SHA-256 for user-uploaded custom lists.