FKIE_CVE-2026-24054

Vulnerability from fkie_nvd - Published: 2026-01-29 18:16 - Updated: 2026-02-24 18:20
Severity ?
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Summary
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. In versions prior to 3.26.0, when a container image is malformed or contains no layers, containerd falls back to bind-mounting an empty snapshotter directory for the container rootfs. When the Kata runtime attempts to mount the container rootfs, the bind mount causes the rootfs to be detected as a block device, leading to the underlying device being hotplugged to the guest. This can cause filesystem-level errors on the host due to double inode allocation, and may lead to the host's block device being mounted as read-only. Version 3.26.0 contains a patch for the issue.
References
security-advisories@github.comhttps://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay.go#L564-L581Patch
security-advisories@github.comhttps://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontainers/container.go#L1122-L1126Patch
security-advisories@github.comhttps://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontainers/container.go#L1616-L1623Patch
security-advisories@github.comhttps://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92aPatch
security-advisories@github.comhttps://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5cExploit, Patch, Vendor Advisory
Impacted products
Vendor Product Version
katacontainers kata_containers *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:katacontainers:kata_containers:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "83FC9E90-1A39-4F26-8F79-3324F03EF0DD",
              "versionEndExcluding": "3.26.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. In versions prior to 3.26.0, when a container image is malformed or contains no layers, containerd falls back to bind-mounting an empty snapshotter directory for the container rootfs. When the Kata runtime attempts to mount the container rootfs, the bind mount causes the rootfs to be detected as a block device, leading to the underlying device being hotplugged to the guest. This can cause filesystem-level errors on the host due to double inode allocation, and may lead to the host\u0027s block device being mounted as read-only. Version 3.26.0 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "Kata Containers es un proyecto de c\u00f3digo abierto centrado en una implementaci\u00f3n est\u00e1ndar de M\u00e1quinas Virtuales (VMs) ligeras que se comportan como contenedores. En versiones anteriores a la 3.26.0, cuando una imagen de contenedor est\u00e1 malformada o no contiene capas, containerd recurre a montar mediante bind-mount un directorio snapshotter vac\u00edo para el rootfs del contenedor. Cuando el tiempo de ejecuci\u00f3n de Kata intenta montar el rootfs del contenedor, el bind mount provoca que el rootfs sea detectado como un dispositivo de bloque, lo que lleva a que el dispositivo subyacente sea conectado en caliente (hotplugged) al invitado. Esto puede causar errores a nivel de sistema de archivos en el host debido a la doble asignaci\u00f3n de inodos, y puede llevar a que el dispositivo de bloque del host sea montado como de solo lectura. La versi\u00f3n 3.26.0 contiene un parche para el problema."
    }
  ],
  "id": "CVE-2026-24054",
  "lastModified": "2026-02-24T18:20:17.090",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.8,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-29T18:16:15.270",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay.go#L564-L581"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      "url": "https://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontainers/container.go#L1122-L1126"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      "url": "https://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontainers/container.go#L1616-L1623"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      "url": "https://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92a"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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        "Patch",
        "Vendor Advisory"
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      "url": "https://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5c"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-754"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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