CVE-2026-18703EPSS p3.2%

CVE-2026-18703CVE-2026-18703

mongodb / mongodb

Description

An issue in MongoDB Server could allow a party with a valid client certificate and a corresponding user account to authenticate using a certificate-based authentication method, even when an administrator has configured the server to restrict authentication to other mechanisms. This could allow authentication through a method the administrator intended to disable.

Scoring

CVSS 4.2 ()
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS0.14% probability of exploitation · percentile 3.2% · 2026-10-06T12:00:23Z
Last modified2026-09-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.