{"id":"CVE-2026-55634","summary":"Pimcore: Remote Code Execution via DataObject Class-Definition Field Name","details":"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.","aliases":["GHSA-9x44-4gxf-8c25"],"modified":"2026-09-11T03:30:50.811827907Z","published":"2026-08-28T19:16:20.078Z","related":["GHSA-9x44-4gxf-8c25","GHSA-r2f4-ff2p-xc64"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-89","CWE-94"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55634.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"11.5.19"}]}]},"references":[{"type":"WEB","url":"https://github.com/pimcore/pimcore/releases/tag/v2026.1.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55634.json"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-r2f4-ff2p-xc64"},{"type":"ADVISORY","url":"https://github.com/pimcore/pimcore/security/advisories/GHSA-9x44-4gxf-8c25"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55634"},{"type":"FIX","url":"https://github.com/pimcore/pimcore/commit/a4f8c3cfee58b7d5fe4873d67782eff58dae9b9d"},{"type":"FIX","url":"https://github.com/pimcore/pimcore/pull/19183"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pimcore/pimcore","events":[{"introduced":"337f64f750298cf6d55c01c95bc9a7413e41d7d0"},{"introduced":"37c14edb2693c4632187e2e78b6915c62af43042"},{"fixed":"71b2af87d1a50027d7a59cb9f41da1ef807d892f"},{"fixed":"ad60bad41946c33bebb4fd42e03b0a575759de02"},{"fixed":"a4f8c3cfee58b7d5fe4873d67782eff58dae9b9d"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"12.0.0-RC1"},{"fixed":"12.3.10"},{"introduced":"2026.1.0"},{"fixed":"2026.1.6"}]}}],"versions":["v12.3.9","v2026.1.5","v12.3.8","v2026.1.4","v2026.1.3","v12.3.7","v2026.1.2","v12.3.5","v2026.1.1","v12.3.4","v2026.1.0","v12.3.3","v12.3.2","v12.3.1.1","v12.3.1","v12.3.0","v12.2.1","v12.2.0","v12.1.0","v12.0.0","v12.0.0-RC2","v12.0.0-RC1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55634.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}