BIT-mongodb-2026-18698

vendorUSosv

Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections via the validate Command

view advisory published 2026-09-17Licence: per source

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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-18698US—OT elevated—
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…
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references

External citations — patches, advisories, analysis.

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