Vulnerabilities in pkg:golang/github.com/containernetworking/plugins

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jv3w-x3r3-g6rm",
  "modified" : "2026-03-24T21:05:28Z",
  "published" : "2025-12-09T17:18:59Z",
  "aliases" : [ "CVE-2025-67499" ],
  "summary" : "CNA Plugins Portmap nftables backend can intercept non-local traffic",
  "details" : "### Background\n\nThe CNI `portmap` plugin allows containers to emulate opening a host port, forwarding that traffic to the container. For example, if a host has the IP 198.51.100.42, a container may request that all packets to `198.51.100.42:53` be forwarded to the container's network.\n\n### Vulnerability\n\nWhen the `portmap` plugin is configured with the `nftables` backend, it inadvertently forwards all traffic with the same destination port as the host port, **ignoring the destination IP**. This includes traffic not intended for the node itself, i.e. traffic to containers hosted on the node.\n\nIn the given example above, traffic destined to port 53 but for a _separate container_ would still be captured and forwarded, even though it was not destined for the host.\n\n### Impact\n\nContainers (i.e. kubernetes pods) that request HostPort forwarding can intercept all traffic destined for that port. This requires that the `portmap` plugin be explicitly configured to use the `nftables` backend. (The `iptables` backend is the default.)\n\n### Patches\nThis is fixed as of CNI plugins v1.9.0\n\n### Workarounds\nConfigure the `portmap` plugin to use the `iptables` backend. It does not have this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containernetworking/plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.6.0"
      }, {
        "fixed" : "1.9.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/containernetworking/plugins/security/advisories/GHSA-jv3w-x3r3-g6rm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-67499"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containernetworking/plugins/pull/1210"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containernetworking/plugins/commit/9b3772e1a7abf93cbb7c6526a28bc0d27b830e02"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/containernetworking/plugins"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containernetworking/plugins/releases/tag/v1.9.0"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2026-4222"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-09T17:18:59Z",
    "nvd_published_at" : "2025-12-10T00:16:11Z"
  }
}