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High · 8.2 Public exploit CVE-2026-41249 EUVD-2026-34318GHSA-q58j-g3f4-h26h

CoreShop Vulnerable to Remote Code Execution (RCE) via Insecure `pull_request_target` Configuration

Published Jun 4, 2026 · Updated Jun 8, 2026 · Assigned by GitHub_M

Vendor: coreshop Product: CoreShop Package: coreshop/core-shop Ecosystem: Packagist

Description

CoreShop is a Pimcore enhanced eCommerce solution. In versions 5.0.1 through 5.1.0-beta.1,, the GitHub Actions workflow (`.github/workflows/static.yml`) uses the `pull_request_target` trigger but dangerously checks out the unverified code from the pull request head (`ref: ${{ github.event.pull_request.head.ref }}`). Subsequently, it executes a script (`bin/console`) from this untrusted checkout. This allows any external attacker to achieve Remote Code Execution (RCE) on the GitHub Actions runner simply by submitting a malicious Pull Request. Also known as a "Pwn Request" vulnerability. As of time of publication, `pull_request_target` is still in the file.

Affected products

VendorProductAffectedFixed
coreshop CoreShop >= 5.0.1, <= 5.1.0-beta.1 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • pvharmo2/gha-lab-5bce203f66 ★ 0 · Sep 6, 2026

    Security-research lab: reproduction of CVE-2026-41249 (GHSA-q58j-g3f4-h26h) — pull_request_target pwn request in .github/workflows/static.yml, snapshot of coreshop/CoreShop@cc1e3f54

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist coreshop/core-shop 5.0.0 — GHSA-q58j-g3f4-h26h

References