Code Injection in Pimcore - CVE-2026-55634
Published: September 17, 2026
Vulnerability identifier: #VU150531
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-55634
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper control of code generation in the DataObject class-definition field-name handling when importing a class definition containing a crafted field name. A remote user can import a crafted class definition to execute arbitrary code.
Execution occurs when an object of the affected class is loaded.
Affected software
Pimcore
How to mitigate CVE-2026-55634
Install security update from vendor's website.
Pimcore - addressed in versions 12.3.10, 2026.1.6