Path traversal in TYPO3 - CVE-2026-49738
Published: June 17, 2026
Vulnerability identifier: #VU134749
CSH Severity: Low
CVSS v4: 2.1 [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]
CVE-ID: CVE-2026-49738
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in Core API within the GeneralUtility::isAllowedAbsPath() function. A remote administrator can send a specially crafted HTTP request and read or create arbitrary files on the system.
Affected software
TYPO3
How to mitigate CVE-2026-49738
Install updates from vendor's website.
TYPO3 - addressed in versions 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3