pimcore/pimcore security advisory

CVE-2026-5394: Pimcore Platform - SQL Injection in DataObject composite index handling during class definition import/save

CVE-2026-5394 is a high-severity SQL injection vulnerability in the PHP package pimcore/pimcore (CVSS 7.0), published 27 April 2026. It is fixed in 2026.1.3; earlier versions are affected. Exploiting it needs an admin-level account.

high 7.0 published 2026-04-27 · updated 2026-06-17

Affected versions: <= 11.5.16
>= 12.0.0-RC1, <= 12.3.6
>= 2026.1.0, < 2026.1.3
Fixed in: 2026.1.3
Newest release: 2026.3.4
Severity: High · CVSS 7.0
Type: SQL injection
CWE-89
Exploited in the wild: Not on the CISA KEV list
checked 2026-11-04

Is your pimcore/pimcore version affected?

Run composer show pimcore/pimcore in your project, then enter the version. We check it against this and every other known pimcore/pimcore advisory.

Who can exploit CVE-2026-5394

Access: A high-privilege account in the app, such as an admin.

CVSS vector (scored by Fluid Attacks): CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Your app is only exposed if it uses the affected part of pimcore/pimcore. The advisory below says which part that is. If you are not sure, upgrade anyway: it costs less than finding out.

How to fix CVE-2026-5394 in pimcore/pimcore

Find the installed version: composer show pimcore/pimcore. If you never required it yourself, composer why pimcore/pimcore shows which package pulls it in.
Update it: composer update pimcore/pimcore --with-all-dependencies. You need 2026.1.3 or newer.
If Composer will not go that high, your composer.json constraint is holding it back. Widen it (for example "pimcore/pimcore": "^2026.1.3" if you can take that version), or upgrade the package that requires it.
Run composer audit. It reads the same advisory data and should no longer list CVE-2026-5394.
Commit composer.lock and deploy it. On the server, run composer install --no-dev from the lock file, not composer update.

If you cannot upgrade yet

General hardening for SQL injection issues while the upgrade waits. None of it replaces the fix.

Make sure user input never reaches the affected query builder or ORM method unvalidated; allow-list column and sort names.
Give the app's database user only the permissions it needs.
If your app does not use the affected feature, note that in your audit, but still plan the upgrade.

The CVE-2026-5394 advisory

An authenticated administrative user who can import or save DataObject class definitions can inject attacker-controlled composite index metadata and trigger unintended SQL execution in the backend. This issue affects pimcore: 12.3.3.

Description from the CVE record, published by Fluid Attacks (the CVE Numbering Authority), via the NVD entry for CVE-2026-5394. Advisory title: “Pimcore Platform - SQL Injection in DataObject composite index handling during class definition import/save”.

References

GitHub advisory GHSA-r2f4-ff2p-xc64 github.com
Fluidattacks security advisory fluidattacks.com
Pull request #19108 github.com
github.com github.com

Other pimcore/pimcore advisories

high CVE-2026-55416: Pimcore: SQL Injection in Custom Reports via Malicious Report Configuration 2026-09-10
critical CVE-2026-55634: Pimcore Vulnerable to Remote Code Execution via DataObject Class-Definition Field Name 2026-08-28
critical CVE-2026-55220: Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column (PHP Object Injection, CWE-502) 2026-08-28
high CVE-2026-55072: Pimcore: ClassDefinition UID regex missing end anchor allows SQL injection via Block.php unquoted table name 2026-08-13
high CVE-2026-11407: Pimcore CMS Twig Sandbox Bypass via SecurityPolicy checkMethodAllowed 2026-06-17
high CVE-2026-45704: Pimcore has a CustomReports Share Bypass 2026-05-27

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Where this data comes from

Affected and fixed versions: the Packagist security advisories API (GitHub Advisory Database and FriendsOfPHP), the same data composer audit uses. Synced 2026-11-03.
Description, score, weakness and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Exploited-in-the-wild status: the CISA Known Exploited Vulnerabilities catalog, checked 2026-11-04.
Compiled by Daniel Lasek at Laskyr from the sources above. The summary, “who can exploit it”, “how to fix it” and hardening sections are our plain-English reading of the record and are generated from it. The quoted description is the record's own text. Spot an error? Tell us.