CVE-2026-13067: tlsCATrusts Role Restriction Not Enforced via PROXY Protocol v2 on Unix Domain Socket
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-13067?
CVE-2026-13067 has a severity rating of medium with a score of 6.3.
How do I fix CVE-2026-13067?
To mitigate CVE-2026-13067, ensure that proper role restrictions are enforced and validate the X.509 client certificates against the tlsCATrusts allow-list.
What impacts does CVE-2026-13067 have on MongoDB?
CVE-2026-13067 can lead to unintended role assignments during MongoDB authentication due to inadequate validation of roles derived from X.509 certificates.
Who is affected by CVE-2026-13067?
CVE-2026-13067 affects users of MongoDB utilizing PROXY protocol v2 on Unix domain sockets.
What are the potential consequences of CVE-2026-13067?
The potential consequences of CVE-2026-13067 include unauthorized access and privilege escalation within the MongoDB environment.