CVE-2026-49738

The path allowance check in GeneralUtility::isAllowedAbsPath() performed a plain string prefix comparison without requiring a directory separator boundary, causing a path like /var/www/html-other/secret.yaml to be incorrectly accepted as valid when the project root was /var/www/html. Administrator users with access to the File Abstraction Layer were able to create new file storage definitions pointing to directories outside the project root, bypassing this path check. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

CVSS

No CVSS.

References

Link	Resource
https://github.com/TYPO3/typo3/commit/150a983a5d687cedcfc33bbe9c335d9a13fd05e5
https://github.com/TYPO3/typo3/commit/44c2fa9807944136218a0842e3051c0a379a002d
https://typo3.org/security/advisory/typo3-core-sa-2026-016

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-09 11:16

Updated : 2026-07-23 08:10

NVD link : CVE-2026-49738

Mitre link : CVE-2026-49738

CVE.ORG link : CVE-2026-49738

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2026-49738", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49738", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-09T13:42:59.723468Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "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": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "affectedData": [{"repo": "https://github.com/TYPO3/typo3", "vendor": "TYPO3", "modules": ["Core"], "product": "TYPO3 CMS", "versions": [{"status": "affected", "version": "0", "lessThan": "10.4.57", "versionType": "semver"}, {"status": "affected", "version": "11.0.0", "lessThan": "11.5.51", "versionType": "semver"}, {"status": "affected", "version": "12.0.0", "lessThan": "12.4.46", "versionType": "semver"}, {"status": "affected", "version": "13.0.0", "lessThan": "13.4.31", "versionType": "semver"}, {"status": "affected", "version": "14.0.0", "lessThan": "14.3.3", "versionType": "semver"}], "packageName": "typo3/cms-core", "collectionURL": "https://packagist.org", "defaultStatus": "unaffected"}]}], "published": "2026-06-09T11:16:53.247", "references": [{"url": "https://github.com/TYPO3/typo3/commit/150a983a5d687cedcfc33bbe9c335d9a13fd05e5", "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"}, {"url": "https://github.com/TYPO3/typo3/commit/44c2fa9807944136218a0842e3051c0a379a002d", "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"}, {"url": "https://typo3.org/security/advisory/typo3-core-sa-2026-016", "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "f4fb688c-4412-4426-b4b8-421ecf27b14a", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "The path allowance check in GeneralUtility::isAllowedAbsPath() performed a plain string prefix comparison without requiring a directory separator boundary, causing a path like /var/www/html-other/secret.yaml to be incorrectly accepted as valid when the project root was /var/www/html. Administrator users with access to the File Abstraction Layer were able to create new file storage definitions pointing to directories outside the project root, bypassing this path check. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2."}, {"lang": "es", "value": "La comprobaci\u00f3n de permiso de ruta en GeneralUtility::isAllowedAbsPath() realiz\u00f3 una comparaci\u00f3n de prefijo de cadena simple sin requerir un l\u00edmite de separador de directorio, lo que provoc\u00f3 que una ruta como /var/www/html-other/secret.yaml fuera aceptada incorrectamente como v\u00e1lida cuando la ra\u00edz del proyecto era /var/www/html. Los usuarios administradores con acceso a la Capa de Abstracci\u00f3n de Archivos pudieron crear nuevas definiciones de almacenamiento de archivos apuntando a directorios fuera de la ra\u00edz del proyecto, eludiendo esta comprobaci\u00f3n de ruta. Este problema afecta a las versiones de TYPO3 CMS anteriores a 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 y 14.0.0-14.3.3."}], "lastModified": "2026-07-23T08:10:00.137", "sourceIdentifier": "f4fb688c-4412-4426-b4b8-421ecf27b14a"}