CVE-2026-24054
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.
CVSS
- Versión: 4.0
- Vector: 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
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.50%
- Percentil entre todas las CVEs puntuadas: 41
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1499.004Application or System Exploitationimpact80 % - Impacto secundario
T1565.001Stored Data Manipulationimpact75 %
Explotación remota de aplicación expuesta (Kata Containers) mediante imagen de contenedor malformada. Los impactos incluyen DoS por corrupción del dispositivo de bloque (VI:H, VA:H) y manipulación de datos del host (SI:H).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-754
Referencias
- https://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay.go#L564-L581
- https://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontainers/container.go#L1122-L1126
- https://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontainers/container.go#L1616-L1623
- https://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92a
- https://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5c
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-24054",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-24054",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-01-29T21:24:41.276960Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 10,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.8,
"exploitabilityScore": 3.9
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.8,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"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",
"exploitMaturity": "PROOF_OF_CONCEPT",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"subIntegrityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "kata-containers",
"product": "kata-containers",
"versions": [
{
"status": "affected",
"version": "< 3.26.0"
}
]
}
]
}
],
"published": "2026-01-29T18:16:15.270",
"references": [
{
"url": "https://github.com/containerd/containerd/blob/d939b6af5f8536c2cae85e919e7c40070557df0e/plugins/snapshots/overlay/overlay.go#L564-L581",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/kata-containers/kata-containers/blob/a164693e1afead84cd01d5bc3575e2cbfe64ce35/src/runtime/virtcontainers/container.go#L1122-L1126",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/kata-containers/kata-containers/blob/c7d0c270ee7dfaa6d978e6e07b99dabdaf2b9fda/src/runtime/virtcontainers/container.go#L1616-L1623",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/kata-containers/kata-containers/commit/20ca4d2d79aa5bf63aa1254f08915da84f19e92a",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/kata-containers/kata-containers/security/advisories/GHSA-5fc8-gg7w-3g5c",
"tags": [
"Exploit",
"Patch",
"Vendor Advisory"
],
"source": "security-advisories@github.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-754"
}
]
}
],
"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's 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 código abierto centrado en una implementación estándar de Máquinas Virtuales (VMs) ligeras que se comportan como contenedores. En versiones anteriores a la 3.26.0, cuando una imagen de contenedor está malformada o no contiene capas, containerd recurre a montar mediante bind-mount un directorio snapshotter vacío para el rootfs del contenedor. Cuando el tiempo de ejecución 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 asignación de inodos, y puede llevar a que el dispositivo de bloque del host sea montado como de solo lectura. La versión 3.26.0 contiene un parche para el problema."
}
],
"lastModified": "2026-06-17T10:22:31.847",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:katacontainers:kata_containers:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "83FC9E90-1A39-4F26-8F79-3324F03EF0DD",
"versionEndExcluding": "3.26.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}