# CVE-2026-11407: Pimcore CMS 12.3.8 Twig Sandbox Bypass via SecurityPolicy checkMethodAllowed

> Authenticated administrators can execute arbitrary code and read files via Twig sandbox bypass in Pimcore CMS.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jun 2026
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-7p36-fq2r-4h7r

## What is CVE-2026-11407?

CVE-2026-11407 is a high-severity code injection vulnerability in Pimcore CMS/DXP, published on 17 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Pimcore CMS/DXP version 12.3.8 contains a sandbox bypass vulnerability that allows authenticated administrative attackers to execute arbitrary methods on PHP objects by exploiting empty checkMethodAllowed() and checkPropertyAllowed() implementations in the custom Twig SecurityPolicy. Attackers can supply malicious Twig templates through the DataObject ClassDefinition Layout\Text component to perform arbitrary file reads, execute arbitrary database queries, and potentially achieve remote code execution via PHP object gadget chains, with the pimcore_* function wildcard further broadening the bypass to all Pimcore Twig functions.

Weakness: CWE-1336 (Improper Neutralization of Special Elements Used in a Template Engine)

## Which versions are affected by CVE-2026-11407?

4 open source packages ship an affected version, including pimcore/pimcore.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `pimcore/pimcore` | Packagist | All versions to 11.5.14.1 | None |
| `pimcore/pimcore` | Packagist | All versions to 11.5.14.1 | None |
| `pimcore/pimcore` | Packagist | From 12.0.0-RC1 to 12.3.8 | None |
| `pimcore/pimcore` | Packagist | From 12.0.0-RC1 to 12.3.8 | None |

## How do I fix CVE-2026-11407?

No fix has been published for CVE-2026-11407 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11407 being exploited?

There is no known exploitation of CVE-2026-11407 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11407 and fix it if it is affected.

What it is: CVE-2026-11407 is a high-severity code injection vulnerability in Pimcore CMS/DXP, published on 17 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-11407 in the wild and no public exploit code.

Affected packages and fixed versions:
- pimcore/pimcore (Packagist): affected all versions up to 11.5.14.1; no fix listed
- pimcore/pimcore (Packagist): affected all versions up to 11.5.14.1; no fix listed
- pimcore/pimcore (Packagist): affected from 12.0.0-RC1 up to 12.3.8; no fix listed
- pimcore/pimcore (Packagist): affected from 12.0.0-RC1 up to 12.3.8; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11407/ (Markdown: https://insights.sbomify.com/CVE-2026-11407/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11407
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11407
- OSV: https://osv.dev/vulnerability/CVE-2026-11407

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11407/
Summaries are generated and may contain mistakes; the official description above is the record.