{
"id": "GHSA-jf56-v8jc-jcc5",
"aliases": [
"CVE-2026-49738"
],
"details": "### Problem\nThe 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.\n\n### Solution\nUpdate to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.\n\n### Credits\nTYPO3 CMS thanks Wolfgang Klinger for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.\n\n### Resources\n* [TYPO3-CORE-SA-2026-016](https://typo3.org/security/advisory/typo3-core-sa-2026-016)",
"summary": "TYPO3 CMS has Broken Access Control in its File Abstraction Layer",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.4.57"
}
]
}
],
"package": {
"name": "typo3/cms-core",
"ecosystem": "Packagist"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "11.0.0"
},
{
"fixed": "11.5.51"
}
]
}
],
"package": {
"name": "typo3/cms-core",
"ecosystem": "Packagist"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "12.0.0"
},
{
"fixed": "12.4.46"
}
]
}
],
"package": {
"name": "typo3/cms-core",
"ecosystem": "Packagist"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.4.31"
}
]
}
],
"package": {
"name": "typo3/cms-core",
"ecosystem": "Packagist"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "14.0.0"
},
{
"fixed": "14.3.3"
}
]
}
],
"package": {
"name": "typo3/cms-core",
"ecosystem": "Packagist"
}
}
],
"modified": "2026-06-12T19:09:04Z",
"severity": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"published": "2026-06-12T19:09:04Z",
"references": [
{
"url": "https://github.com/TYPO3/typo3/security/advisories/GHSA-jf56-v8jc-jcc5",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49738",
"type": "ADVISORY"
},
{
"url": "https://github.com/TYPO3/typo3/commit/150a983a5d687cedcfc33bbe9c335d9a13fd05e5",
"type": "WEB"
},
{
"url": "https://github.com/TYPO3/typo3/commit/44c2fa9807944136218a0842e3051c0a379a002d",
"type": "WEB"
},
{
"url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-49738.yaml",
"type": "WEB"
},
{
"url": "https://github.com/TYPO3/typo3",
"type": "PACKAGE"
},
{
"url": "https://typo3.org/security/advisory/typo3-core-sa-2026-016",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"severity": "LOW",
"github_reviewed": true,
"nvd_published_at": "2026-06-09T11:16:53Z",
"github_reviewed_at": "2026-06-12T19:09:04Z"
}
}