The legacy single-seat license checkin flow authorizes the action with the checkout permission instead of the checkin permission. Because of this, a user who is allowed to assign licenses but not unassign them can still directly access the old checkin endpoint and reclaim a license seat that is currently assigned to another user or asset.
{
"cwe_ids": [
"CWE-863"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-28T18:02:55Z",
"nvd_published_at": "2026-07-10T20:16:47Z",
"severity": "MODERATE"
}