Is CVE-2026-18695 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18695?

CVE-2026-18695 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-18695

Description

An issue in MongoDB Server's handling of certain query predicates against time-series collections with a metaField could allow an authenticated user with write access to cause the server process to terminate unexpectedly, resulting in a denial of service.