Is CVE-2026-13067 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-13067?

CVE-2026-13067 has a CVSS v3 severity of MEDIUM (6.3).

Back

CVE-2026-13067

Description

When PROXY protocol v2 is used on the Unix domain socket path, roles derived from X.509 client certificates may not be validated against the configured tlsCATrusts allow-list. This can result in unintended role assignments following MONGODB-X509 authentication. Affected scenarios require local access to the proxy Unix domain socket and a valid X.509 certificate issued by a trusted certificate authority.