github.com/containernetworking/plugins

2 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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Medium 6.6

CVE-2025-67499

CNI Plugins Portmap nftables backend intercepts non-local traffic

The CNI portmap plugin allows containers to emulate opening a host port, forwarding that traffic to the container. Versions 1.6.0 through 1.8.0 inadvertently forward all traffic with the same destination port as the host port when the portmap plugin is config…

containernetworking plugins singularity golang-github-containernetworking-plugins Ubuntu Alpine Go

Dec 9, 2025
Medium 6.0

CVE-2020-10749 Public exploit

containernetworking/plugins vulnerable to MitM attacks

A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious container can exploit this flaw by sending rogue IP…

Red Hat containernetworking/plugins k3s github.com/containernetworking/plugins Debian Ubuntu Alpine Go

Jun 3, 2020