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MongoDBCVE-2026-13067

MongoDB Server: improper authorization

High7.2CVE-2026-13067 · Published Jul 22, 2026 · updated Aug 5, 2026

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.

MongoDB advisory

Affected versions

PackageAffectedFixed in
MongoDB Server
Product
>= 8.0, < 8.0.288.0.28
>= 8.3.0, < 8.3.78.3.7
Details and references
CVSS 4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-863

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