Vulnerability · Published Aug 28, 2026 · Assigned by GitHub_M
CVE-2026-55634Pimcore: Remote Code Execution via DataObject Class-Definition Field Name
Critical 9.9
In plain English
A critical-severity SQL injection in pimcore from pimcore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.19, 12.3.10, and 2026.1.6, the class-definition import endpoint /pimcore-studio/api/class/definition/configuration-view/detail/{id}/import accepts a DataObject field name that is emitted without an identifier allowlist by lib/DataObject/ClassBuilder/FieldDefinitionPropertiesBuilder.php into generated PHP properties and by models/DataObject/ClassDefinition/Helper/Dao.php into ALTER TABLE identifiers. An authenticated user with the objects permission can inject PHP syntax into the generated DataObject class, causing attacker-controlled code in generated var/classes/DataObject/.php files to run when an object of that class is instantiated, and can also inject SQL identifier content into schema-changing statements. The central models/DataObject/ClassDefinition/Data.php::setName() validation did not reject semicolons, braces, backticks, spaces, or other non-identifier characters. This issue is fixed in versions 11.5.19, 12.3.10, and 2026.1.6.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | pimcore/pimcore | 12.3.10 | GHSA-9x44-4gxf-8c25 |
| Packagist | pimcore/pimcore | 2026.1.6 | GHSA-9x44-4gxf-8c25 |
Affected products (as reported)
Weakness: CWE-89, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/pimcore/pimcore/security/advisories/GHSA-9x44-4gxf-8c25 x_refsource_CONFIRM
- https://github.com/pimcore/pimcore/pull/19183 x_refsource_MISC
- https://github.com/pimcore/pimcore/commit/a4f8c3cfee58b7d5fe4873d67782eff58dae9b9d x_refsource_MISC
- https://github.com/advisories/GHSA-r2f4-ff2p-xc64 x_refsource_MISC
- https://github.com/pimcore/pimcore/releases/tag/v2026.1.6 x_refsource_MISC