{"id":"CVE-2026-18690","aliases":["BIT-mongodb-2026-18690","EUVD-2026-56881","GHSA-494v-9jwj-989h","UBUNTU-CVE-2026-18690"],"status":"published","title":"Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections","description":"An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that their assigned privileges should not permit. 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