CVE-2026-42306
Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H
- Base score: 7.2
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.10%
- Percentile among all scored CVEs: 1
- Score date: 10/4/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution85 % - Primary impact
T1565.001Stored Data Manipulationimpact75 % - Secondary impact
T1499.004Application or System Exploitationimpact70 %
Requiere interacción del usuario (UI:R) para ejecutar docker cp con contenedor malicioso. Impactos: manipulación de archivos del host (sobrescritura) e interrupciones de servicio (DoS) por redireccionamiento de mount.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (3)
CWEs
- CWE-61, CWE-367
References
Raw JSON (NVD)
Show
{
"id": "CVE-2026-42306",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-42306",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-06-13T03:25:35.429147Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.8,
"exploitabilityScore": 0.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.8,
"exploitabilityScore": 0.8
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "moby",
"product": "moby",
"versions": [
{
"status": "affected",
"version": "github.com/docker/docker/daemon <= 28.5.2"
},
{
"status": "affected",
"version": "Docker Engine < 29.5.1"
},
{
"status": "affected",
"version": "github.com/moby/moby/v2/daemon < 2.0.0-beta.14"
}
]
}
]
}
],
"published": "2026-06-12T19:16:27.490",
"references": [
{
"url": "https://github.com/moby/moby/security/advisories/GHSA-rg2x-37c3-w2rh",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"source": "security-advisories@github.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-61"
},
{
"lang": "en",
"value": "CWE-367"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14."
}
],
"lastModified": "2026-06-17T10:47:39.960",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:docker:engine:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0387267D-1C09-445D-8DE5-EBF7ED5D8DA7",
"versionEndExcluding": "29.5.1"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "13145CF0-6F92-4618-9D3B-7CC2BF2093AD",
"versionEndIncluding": "28.5.2"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta0:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "41E96E86-7594-4167-B07C-88D160E55342"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A64F5FE0-916E-4204-ABEE-1F7A35318411"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta10:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6BDD2BEB-8FED-445D-917C-20032175523D"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta11:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2EB749A6-2846-416F-8F34-B9E367CB339B"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta12:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "62AB7D16-0C2C-4C2C-883E-FDCE44BFCF7E"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta13:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D87928A4-5851-4FEC-8623-E156967B2BB8"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "96A4B37B-E3A1-495F-A9CD-FB64450A3C4C"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "197109A1-5D87-4A71-B533-D4C290471B77"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C92B17E7-7C0C-437E-8CE7-D8D110992196"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D3A71A9E-CEBB-4494-B5AF-A22B4AC59240"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7D288EB-1234-45BC-877C-52424291A8CD"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "42DE84CD-889E-4EBE-B23E-D7774DF2DFDF"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta8:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "71BE8BC1-B8CF-4390-B743-F9415BF45C01"
},
{
"criteria": "cpe:2.3:a:mobyproject:moby\\/v2:2.0.0:beta9:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CB767A77-2F36-49D6-8DD6-C66000BA59CC"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}