Description
Cocos Engine is an open-source framework for building 2D & 3D real-time rendering and interactive content. In the github repo for Cocos Engine the `web-interface-check.yml` was subject to command injection. The `web-interface-check.yml` was triggered when a pull request was opened or updated and contained the user controllable field `(${{ github.head_ref }} – the name of the fork’s branch)`. This would allow an attacker to take over the GitHub Runner and run custom commands (potentially stealing secrets such as GITHUB_TOKEN) and altering the repository. The workflow has since been removed for the repository. There are no actions required of users.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cocos | cocos-engine | < 6d06aefa26 | — |
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.
GitHub 1 repository
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pvharmo2/gha-lab-fb32aba4a3 ★ 0 · Aug 31, 2026
Authorized lab reproduction of CVE-2023-26493 (GHSL-2023-027): command injection via github.head_ref in cocos-engine's <Web> Interface check pull_request_target workflow
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.