CVE-2025-54410: Github.com/docker/docker Moby Firewalld Reload Removes Bridge Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4vq8-7jfc-9cvp",
  "modified" : "2026-03-27T17:37:52Z",
  "published" : "2025-07-29T19:56:25Z",
  "aliases" : [ "CVE-2025-54410" ],
  "summary" : "Moby firewalld reload removes bridge network isolation",
  "details" : "Moby is an open source container framework developed by Docker Inc. that is distributed as Docker Engine, Mirantis Container Runtime, and various other downstream projects/products. The Moby daemon component (dockerd), which is developed as [moby/moby](https://github.com/moby/moby) is commonly referred to as Docker, or Docker Engine.\n\nFirewalld is a daemon used by some Linux distributions to provide a dynamically managed firewall. When Firewalld is running, Docker uses its iptables backend to create rules, including rules to isolate containers in one bridge network from containers in other bridge networks.\n\n### Impact\n\nThe iptables rules created by Docker are removed when firewalld is reloaded using, for example \"firewall-cmd --reload\", \"killall -HUP firewalld\", or \"systemctl reload firewalld\".\n\nWhen that happens, Docker must re-create the rules. However, in affected versions of Docker, the iptables rules that isolate containers in different bridge networks from each other are not re-created.\n\nOnce these rules have been removed, containers have access to any port, on any container, in any non-internal bridge network, running on the Docker host.\n\nContainers running in networks created with `--internal` or equivalent have no access to other networks. Containers that are only connected to these networks remain isolated after a firewalld reload.\n\nWhere Docker Engine is not running in the host's network namespace, it is unaffected. Including, for example, Rootless Mode, and Docker Desktop.\n\n### Patches\n\nMoby releases 28.0.0 and newer are not affected. A fix is available in moby release 25.0.13.\n\n### Workarounds\nAfter reloading firewalld, either:\n- Restart the docker daemon,\n- Re-create bridge networks, or\n- Use rootless mode.\n\n### References\nhttps://firewalld.org/\nhttps://firewalld.org/documentation/howto/reload-firewalld.html",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/docker/docker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "25.0.13"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 25.0.12"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/docker/docker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "26.0.0-rc1"
      }, {
        "fixed" : "28.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/moby/moby/security/advisories/GHSA-4vq8-7jfc-9cvp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-54410"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moby/moby/pull/49443"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moby/moby/pull/49728"
  }, {
    "type" : "WEB",
    "url" : "https://firewalld.org/documentation/howto/reload-firewalld.html"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moby/moby"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-909" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-29T19:56:25Z",
    "nvd_published_at" : "2025-07-30T14:15:28Z"
  }
}