CVE-2026-81522
HIGH
NVD
CVSS Score
8.1
Severity
HIGH
Published
Aug 27, 2026
Vendor
unknown
Description
A weakness in the MongoDB C++ Driver's handling of caller-supplied namespace identifiers allows special characters embedded in those identifiers. An application that builds a namespace identifier from untrusted input without validating it may therefore have its operation directed at a different target than intended. This can result in limited unauthorized read and write access to data belonging to another logical tenant of the affected application.