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Vulnerabilities CVE-2026-18698

CVE-2026-18698

Medium
Open
TLP:CLEAR

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

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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 should require more specific privileges. This could result in exposure of collection metadata and, on certain deployment configurations, unauthorized modification of system collection data.

Details

CVSS Score
5.3
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Confidence
90%
Published
Aug 11, 2026
Last Modified
Aug 11, 2026
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