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Vulnerabilities CVE-2026-18696

CVE-2026-18696

High
Open
TLP:CLEAR

Improper Authorization in MongoDB applyOps Command Handling Allows Unauthorized DDL Operations on Collections

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Description

An issue in MongoDB Server's applyOps command could allow an authenticated user with specific non-default privileges to perform certain data-definition operations, such as dropping or modifying collections, against collections they do not have permission to manipulate. This is due to an inconsistency in how the target collection is determined between the authorization check and the actual operation.

Details

CVSS Score
7.0
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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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