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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-0859",
"assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"state": "PUBLISHED",
"assignerShortName": "TYPO3",
"dateReserved": "2026-01-12T11:25:46.041Z",
"datePublished": "2026-01-13T11:54:11.494Z",
"dateUpdated": "2026-01-13T14:12:12.132Z"
},
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://packagist.org",
"defaultStatus": "unaffected",
"modules": [
"Core"
],
"packageName": "typo3/cms-core",
"product": "TYPO3 CMS",
"repo": "https://github.com/TYPO3/typo3",
"vendor": "TYPO3",
"versions": [
{
"lessThan": "10.4.55",
"status": "affected",
"version": "10.0.0",
"versionType": "semver"
},
{
"lessThan": "11.5.49",
"status": "affected",
"version": "11.0.0",
"versionType": "semver"
},
{
"lessThan": "12.4.41",
"status": "affected",
"version": "12.0.0",
"versionType": "semver"
},
{
"lessThan": "13.4.23",
"status": "affected",
"version": "13.0.0",
"versionType": "semver"
},
{
"lessThan": "14.0.2",
"status": "affected",
"version": "14.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.4.55",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
"versionEndExcluding": "11.5.49",
"versionStartIncluding": "11.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
"versionEndExcluding": "12.4.41",
"versionStartIncluding": "12.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
"versionEndExcluding": "13.4.23",
"versionStartIncluding": "13.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*",
"versionEndExcluding": "14.0.2",
"versionStartIncluding": "14.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Vitaly Simonovich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Elias Häußler"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Oliver Hader"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the <code>mailer:spool:send</code> command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1."
}
],
"value": "TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 5.2,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"shortName": "TYPO3",
"dateUpdated": "2026-01-13T11:54:25.069Z"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://typo3.org/security/advisory/typo3-core-sa-2026-004"
},
{
"name": "Git commit of main branch",
"tags": [
"patch"
],
"url": "https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f"
},
{
"name": "Git commit of 13.4 branch",
"tags": [
"patch"
],
"url": "https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f"
},
{
"name": "Git commit of 12.4 branch",
"tags": [
"patch"
],
"url": "https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-01-13T14:11:54.124321Z",
"id": "CVE-2026-0859",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-13T14:12:12.132Z"
}
}
]
}
}