Vulnerabilities CVE-2026-18690

CVE-2026-18690

High

Open

TLP:CLEAR

Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections

NVD CVE.org

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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 their assigned privileges should not permit. This could result in critical system collections being dropped and recreated without proper authorization.

Details

CVSS Score: 7.2
EPSS Score ⓘ: 0.26%

17.6th percentile
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 11, 2026
Last Modified: Aug 11, 2026

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