High 8.0Published Jul 17, 2026

CVE-2026-45162Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction

Updated under an hour ago (Oct 26, 2026, 10:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 8.0 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pimcore pimcore pimcore:pimcore (from the name)	before 11.5.17; from 12.0.0, < 12.3.7	CNA record

References

https://github.com/pimcore/pimcore/security/advisories/GHSA-36fc-7wjg-mfvjx-refsource-confirm
https://github.com/pimcore/pimcore/pull/19119x-refsource-misc
https://github.com/pimcore/pimcore/commit/4788bf3a3a7f2f760a8fe61e522565941e154e1ex-refsource-misc
https://github.com/pimcore/pimcore/releases/tag/v12.3.7x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.