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    2 vulnerabilities found for Moby overlay network driver by Moby

    CVE-2026-92542 (GCVE-0-2026-92542)

    Vulnerability from nvd – Published: 2026-10-07 16:42 – Updated: 2026-10-07 20:30
    VLAI
    Title
    Blind VXLAN injection into encrypted overlay networks from cluster peer
    Summary
    The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-07 20:30 UTC
    CWE
    • CWE-290 - Authentication Bypass by Spoofing
    Assigner
    Docker CNA under the mitre root
    CNA scorecard B 88/100 over 32 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Docker Docker Engine Affected: 0 , < 25.0.19 (semver)
    Affected: 26.0.0 , < 29.8.2 (semver)
    		Create a notification for this product.
    Docker Docker Engine overlay network driver Affected: 0 , < v25.0.19 (semver)
    Affected: v26.0.0 , < * (semver)
    		Create a notification for this product.
    Moby Moby overlay network driver Affected: v2.0.0-beta.0 , < v2.0.0-beta.25 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-92542",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T20:30:27.853237Z",
                "version": "2.0.3"
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                "description": "CWE-290 Authentication Bypass by Spoofing",
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            ]
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T20:30:49.884Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "Docker Engine",
          "vendor": "Docker",
          "versions": [
            {
              "lessThan": "25.0.19",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "29.8.2",
              "status": "affected",
              "version": "26.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "github.com/docker/docker/libnetwork/drivers/overlay",
          "platforms": [
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          ],
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            {
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              "status": "affected",
              "version": "v26.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "github.com/moby/moby/v2/daemon/libnetwork/drivers/overlay",
          "platforms": [
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          ],
          "product": "Moby overlay network driver",
          "vendor": "Moby",
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              "status": "affected",
              "version": "v2.0.0-beta.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "Linux Swarm nodes participating in an encrypted overlay network"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria:\n\n- UDP datagram\n- Destination port is the Swarm data-path port\n- Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to"
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "An unprivileged user on a Swarm node can trivially inject forged Ethernet frames into an encrypted overlay network on another node."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
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            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      "providerMetadata": {
        "dateUpdated": "2026-10-07T16:42:20.998Z",
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        "shortName": "Docker"
      },
      "references": [
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          "url": "https://github.com/moby/moby/security/advisories/GHSA-6m9p-4h64-m6vh"
        }
      ],
      "title": "Blind VXLAN injection into encrypted overlay networks from cluster peer",
      "workarounds": [
        {
          "lang": "en",
          "value": "Block userspace processes from sending UDP packets to the Swarm data-path port.\n\niptables -I OUTPUT -p udp --dport \"$(docker info --format \u0027{{.Swarm.Cluster.DataPathPort}}\u0027)\" -m owner --socket-exists -j DROP"
        }
      ]
    }
  },
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    "cveId": "CVE-2026-92542",
    "datePublished": "2026-10-07T16:42:20.998Z",
    "dateReserved": "2026-09-16T13:00:30.172Z",
    "dateUpdated": "2026-10-07T20:30:49.884Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-92542 (GCVE-0-2026-92542)

    Vulnerability from cvelistv5 – Published: 2026-10-07 16:42 – Updated: 2026-10-07 20:30
    VLAI
    Title
    Blind VXLAN injection into encrypted overlay networks from cluster peer
    Summary
    The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-07 20:30 UTC
    CWE
    • CWE-290 - Authentication Bypass by Spoofing
    Assigner
    Docker CNA under the mitre root
    CNA scorecard B 88/100 over 32 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Docker Docker Engine Affected: 0 , < 25.0.19 (semver)
    Affected: 26.0.0 , < 29.8.2 (semver)
    		Create a notification for this product.
    Docker Docker Engine overlay network driver Affected: 0 , < v25.0.19 (semver)
    Affected: v26.0.0 , < * (semver)
    		Create a notification for this product.
    Moby Moby overlay network driver Affected: v2.0.0-beta.0 , < v2.0.0-beta.25 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-92542",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T20:30:27.853237Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
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              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T20:30:49.884Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "Docker Engine",
          "vendor": "Docker",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "29.8.2",
              "status": "affected",
              "version": "26.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "github.com/docker/docker/libnetwork/drivers/overlay",
          "platforms": [
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              "version": "v26.0.0",
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          "packageName": "github.com/moby/moby/v2/daemon/libnetwork/drivers/overlay",
          "platforms": [
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          ],
          "product": "Moby overlay network driver",
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      "configurations": [
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      ],
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          "lang": "en",
          "value": "The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria:\n\n- UDP datagram\n- Destination port is the Swarm data-path port\n- Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to"
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "An unprivileged user on a Swarm node can trivially inject forged Ethernet frames into an encrypted overlay network on another node."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "dateUpdated": "2026-10-07T16:42:20.998Z",
        "orgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e",
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        }
      ],
      "title": "Blind VXLAN injection into encrypted overlay networks from cluster peer",
      "workarounds": [
        {
          "lang": "en",
          "value": "Block userspace processes from sending UDP packets to the Swarm data-path port.\n\niptables -I OUTPUT -p udp --dport \"$(docker info --format \u0027{{.Swarm.Cluster.DataPathPort}}\u0027)\" -m owner --socket-exists -j DROP"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e",
    "assignerShortName": "Docker",
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    "datePublished": "2026-10-07T16:42:20.998Z",
    "dateReserved": "2026-09-16T13:00:30.172Z",
    "dateUpdated": "2026-10-07T20:30:49.884Z",
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