CVE-2026-13067
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
CVSS
6.3
Medium
EPSS
0.1%
p1
KEV
—
Exploit Today
0
0-100
Published: Jul 22, 2026 · Last modified: Aug 5, 2026 · CWE-863
0.1%EPSS · 30 days0.1%
2026-09-232026-10-21
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.
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