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NVD / CVE Program· CNA GitHub_M

CVE-2026-55634: Pimcore: Remote Code Execution via DataObject Class-Definition Field Name

CriticalCVSS 9.9 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.65% (FIRST EPSS); higher than 51.6% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: pimcore/pimcore (Packagist) 12.3.7, 2026.1.6, 2026.1.3.

Low priority for now. Upgrade to pimcore/pimcore (Packagist) 12.3.7, 2026.1.6, 2026.1.3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Aug 28, 2026
Updated
Sep 9, 2026
EPSS
0.6% · 51th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
9.9
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-55634

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • pimcore pimcore

    • < 11.5.19, >= 12.0.0-RC1, < 12.3.10, >= 2026.1.0, < 2026.1.6affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistpimcore/pimcorefrom 12.0.0-RC1 · before 12.3.712.3.7
Packagistpimcore/pimcorefrom 2026.1.0 · before 2026.1.62026.1.6
Packagistpimcore/pimcorefrom 2026.1.0 · before 2026.1.32026.1.3
Packagistpimcore/pimcorebefore 12.3.1012.3.10
Packagistpimcore/pimcorebefore 11.5.1711.5.17

Other highest-scoring records for the same primary product.

Published before and after this one in the same product

  • ← EarlierCVE-2026-44741Aug 12, 2026 · Pimcore Admin Classic Bundle Vulnerable to SQL Injection in Translation Grid Date Filter via Unsanitized Property Parameter
    35Monitor
  • ← EarlierCVE-2026-55220Aug 28, 2026 · Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column
    37Monitor
  • Later →CVE-2026-55072Sep 14, 2026 · Pimcore: ClassDefinition UID regex missing end anchor allows SQL injection via Block.php unquoted table name
    34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Packagist:pimcore/pimcore11.5.17Package registry (OSV)
Packagist:pimcore/pimcore12.3.10Package registry (OSV)
Packagist:pimcore/pimcore12.3.7Package registry (OSV)
Packagist:pimcore/pimcore2026.1.3Package registry (OSV)
Packagist:pimcore/pimcore2026.1.6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-4474116 days apartPimcore Admin Classic Bundle Vulnerable to SQL Injection in Translation Grid Date Filter via Unsanitized Property Parameter
    35Monitor
  • CVE-2026-5541617 days apartPimcore: SQL Injection in Mautic Custom Reports Bundle Due to Direct Concatenation of User-Controlled Configuration Fields Without Parameterization
    35Monitor
  • CVE-2026-4473942 days apartPimcore: SQL Injection in Custom Reports Column Configuration
    34Monitor
  • CVE-2026-5520850 days apartPimcore: SQL Injection via Column Name in DateFilter allows authenticated user to extract arbitrary database data including admin password hashes
    30Monitor
  • CVE-2026-5394123 days apartPimcore Platform v12.3.3 - SQL Injection in DataObject composite index handling
    28Monitor
  • CVE-2026-27461185 days apartPimcore vulnerable to SQL injection via unsanitized filter value in Dependency Dao RLIKE clause
    27Monitor

Not on record for this CVE: researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

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

nvd-secondary

Root cause

The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = '" + owner + "'");

Fixed

ts
const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = $1",  [owner]);

References

All records