CVE-2026-18698 — Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections via the validate Command
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 should require mo…
Published: 2026-08-11 · CVSS: 5.3 · CVSS 4.0
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 should require more specific privileges. This could result in exposure of collection metadata and, on certain deployment configurations, unauthorized modification of system collection data.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7