Critical 9.3Published Aug 28, 2026

CVE-2026-55220Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column

Updated under an hour ago (2026-10-19 07:20 UTC)

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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 11.5.19, 12.3.10, and 2026.1.6, Pimcore\Model\DataObject\ClassDefinition\Data\Hotspotimage::getDataFromResource() in models/DataObject/ClassDefinition/Data/Hotspotimage.php passes the field __hotspots object-store column to Pimcore\Tool\Serialize::unserialize() without an allowed-classes restriction after JSON decoding fails. An attacker with a separate capability to write crafted PHP serialized bytes into that column can instantiate available classes and trigger magic methods when an affected DataObject is loaded, which can produce arbitrary file writes or code execution through bundled gadget chains. The related ImageGallery, Block, and Video callers use the same fallback pattern, but the identified June fix changes the Hotspotimage caller only. This issue is fixed for Hotspotimage in versions 11.5.19, 12.3.10, and 2026.1.6.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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: Aug 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pimcore pimcore pimcore:pimcore (from the name)	before 11.5.19; from 12.0.0-RC1, < 12.3.10; from 2026.1.0, < 2026.1.6	CNA record

References

https://github.com/pimcore/pimcore/security/advisories/GHSA-w23p-wrp7-ch38x-refsource-confirm
https://github.com/pimcore/pimcore/pull/19181x-refsource-misc
https://github.com/pimcore/pimcore/commit/b184c01bf11e213e601d965b4e96c8bb7248e980x-refsource-misc
https://github.com/pimcore/pimcore/releases/tag/v12.3.10x-refsource-misc
https://github.com/pimcore/pimcore/releases/tag/v2026.1.6x-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.