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Vulnerability record · CVE-2026-45162 · published 17 July 2026

CVE-2026-45162: Deserialization of untrusted data vulnerability

Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/Tool/Authentication.php, models/Site/Dao.php, models/DataObject/ClassDefinition/CustomLayout/Dao.php, models/Tool/TmpStore/Dao.php, models/Asset/WebDAV/Service.php, and admin-ui-classic-bundle/src/Helper/Dashboard.php, enabling object injection and remote code execution if an attacker can control the serialized data source. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.

8.0 CVSS 3.1 High EPSS 0.99% · top 39.1% CWE-502 · Deserialization of untrusted data Deferred
8.0CVSS 3.1 base score
0.99%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Jul 2026Last modified by NVD

Description

Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/Tool/Authentication.php, models/Site/Dao.php, models/DataObject/ClassDefinition/CustomLayout/Dao.php, models/Tool/TmpStore/Dao.php, models/Asset/WebDAV/Service.php, and admin-ui-classic-bundle/src/Helper/Dashboard.php, enabling object injection and remote code execution if an attacker can control the serialized data source. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References

LinkTags
https://github.com/pimcore/pimcore/commit/4788bf3a3a7f2f760a8fe61e522565941e154e1e
https://github.com/pimcore/pimcore/pull/19119
https://github.com/pimcore/pimcore/releases/tag/v12.3.7
https://github.com/pimcore/pimcore/security/advisories/GHSA-36fc-7wjg-mfvj

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Source: NIST National Vulnerability Database (record CVE-2026-45162), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.