Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 0.0%
CVSS Severity
CVSS v3 Score 6.3
Products affected by CVE-2026-13067
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cpe:2.3:a:mongodb:mongodb:8.0.0
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cpe:2.3:a:mongodb:mongodb:8.0.1
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cpe:2.3:a:mongodb:mongodb:8.0.10
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cpe:2.3:a:mongodb:mongodb:8.0.11
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cpe:2.3:a:mongodb:mongodb:8.0.12
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cpe:2.3:a:mongodb:mongodb:8.0.13
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cpe:2.3:a:mongodb:mongodb:8.0.14
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cpe:2.3:a:mongodb:mongodb:8.0.15
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cpe:2.3:a:mongodb:mongodb:8.0.16
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cpe:2.3:a:mongodb:mongodb:8.0.17
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cpe:2.3:a:mongodb:mongodb:8.0.18
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cpe:2.3:a:mongodb:mongodb:8.0.19
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cpe:2.3:a:mongodb:mongodb:8.0.2
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cpe:2.3:a:mongodb:mongodb:8.0.20
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cpe:2.3:a:mongodb:mongodb:8.0.21
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cpe:2.3:a:mongodb:mongodb:8.0.23
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cpe:2.3:a:mongodb:mongodb:8.0.24
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cpe:2.3:a:mongodb:mongodb:8.0.25
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cpe:2.3:a:mongodb:mongodb:8.0.26
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cpe:2.3:a:mongodb:mongodb:8.0.3
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cpe:2.3:a:mongodb:mongodb:8.0.4
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cpe:2.3:a:mongodb:mongodb:8.0.5
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cpe:2.3:a:mongodb:mongodb:8.0.6
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cpe:2.3:a:mongodb:mongodb:8.0.7
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cpe:2.3:a:mongodb:mongodb:8.0.8
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cpe:2.3:a:mongodb:mongodb:8.0.9
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cpe:2.3:a:mongodb:mongodb:8.3.0
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cpe:2.3:a:mongodb:mongodb:8.3.1
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cpe:2.3:a:mongodb:mongodb:8.3.2
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cpe:2.3:a:mongodb:mongodb:8.3.3
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cpe:2.3:a:mongodb:mongodb:8.3.4