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CVE-2023-26493: Command Injection in Cocos Engine workflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-03-27 · updated 2026-06-17
• Weakness: CWE-74

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

• cocos-engine: before 2023-02-20 — fixed in 2023-02-20

How to fix

Upgrade to a fixed version: cocos-engine 2023-02-20. Check the vendor advisory for mitigations.

References

• https://github.com/cocos/cocos-engine/blob/2362df28a4b3016dbda804899041279701929728/.github/workflows/web-interface-check.yml
• https://github.com/cocos/cocos-engine/commit/6d06aefa2684e20da79e7ceaf41f728c1a8d7a41
• https://securitylab.github.com/advisories/GHSL-2023-027_Engine_for_Cocos_Creator/
• https://github.com/cocos/cocos-engine/blob/2362df28a4b3016dbda804899041279701929728/.github/workflows/web-interface-check.yml
• https://github.com/cocos/cocos-engine/commit/6d06aefa2684e20da79e7ceaf41f728c1a8d7a41
• https://securitylab.github.com/advisories/GHSL-2023-027_Engine_for_Cocos_Creator/

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