Pimcore: Remote Code Execution via DataObject Class-Definition Field Name
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection, Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-89 and CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pimcore | pimcore | before 11.5.19; 12.0.0-RC1 to before 12.3.10; 2026.1.0 to before 2026.1.6 | 11.5.19, 12.3.10, 2026.1.6 | Patch available | CNA |
| — | pimcore/pimcore (Packagist) | before 12.3.10 | 12.3.10 | Patch available | GHSA-9x44-4gxf-8c25 |
| — | pimcore/pimcore (Packagist) | 2026.1.0 to before 2026.1.6 | 2026.1.6 | Patch available | GHSA-9x44-4gxf-8c25 |
- pimcore Vendorpimcore Affected before 11.5.19; 12.0.0-RC1 to before 12.3.10; 2026.1.0 to before 2026.1.6 Fixed in 11.5.19, 12.3.10, 2026.1.6 Patch available CNA
- pimcore/pimcore (Packagist) Vendor— Affected before 12.3.10 Fixed in 12.3.10 Patch available GHSA-9x44-4gxf-8c25
- pimcore/pimcore (Packagist) Vendor— Affected 2026.1.0 to before 2026.1.6 Fixed in 2026.1.6 Patch available GHSA-9x44-4gxf-8c25
Remediation
- Fix · CNA pimcore (pimcore) Fixed in 11.5.19, 12.3.10, 2026.1.6
- Fix · GHSA-9x44-4gxf-8c25 pimcore/pimcore (Packagist) Fixed in 12.3.10 Advisory →
- Fix · GHSA-9x44-4gxf-8c25 pimcore/pimcore (Packagist) Fixed in 2026.1.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-55634
- 2026-10-03 Alias added: GHSA-9x44-4gxf-8c25
- 2026-10-16 EPSS moved to the 50th–90th percentile
References
Other 6
- https://github.com/pimcore/pimcore/security/advisories/GHSA-9x44-4gxf-8c25
- https://github.com/pimcore/pimcore/pull/19183
- https://github.com/pimcore/pimcore/commit/a4f8c3cfee58b7d5fe4873d67782eff58dae9b9d
- https://github.com/advisories/GHSA-r2f4-ff2p-xc64
- https://github.com/pimcore/pimcore/releases/tag/v2026.1.6
- https://github.com/pimcore/pimcore
More pimcore vulnerabilities
- TI-2026-18925 Pimcore has a Blind SQL Injection in Admin Search Find API due to an incomplete fix for CVE-2023-30848 CVSS 3.1HIGH 8.8
- TI-2024-15667 Pimcore Admin Classic Bundle host header injection in the password reset CVSS 3.1HIGH 8.8
- TI-2026-18926 Pimcore ENV Variables and Cookie Informations are exposed in http_error_log CVSS 3.1HIGH 8.6
- TI-2024-16853 Pimcore Host Header Injection in user invitation link CVSS 3.1CRITICAL 9.3
- TI-2023-01489 SQL Injection in pimcore/pimcore CVSS 3.1HIGH 8.8
- TI-2019-08091 An issue was discovered in Pimcore before 5.7.1. CVSS 3.0HIGH 8.8
Sources
- CVE-2026-55634 · CVE Program
- CVE-2026-55634 · NVD
- FIRST EPSS
- GHSA-9x44-4gxf-8c25 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences