CVE-2026-51190 Serverless-Devs CVE debrief

Who should care

Serverless-Devs users, developers, and administrators are advised to prioritize patching to prevent potential OS command injection attacks. Affected operators, platforms, vulnerability-management teams, and security teams should review the vulnerability and implement necessary mitigations. Compensating controls for exposed systems should be reviewed while remediation is scheduled and verified. Relevant monitoring, detection, and logs for exposed assets should be checked for extra review. Exceptions should be tracked, and remediated assets should be retested and closed only after evidence is documented. Asset inventory and source tracking can help in managing the vulnerability effectively across the organization, and defensive impact should be considered in the context of the organization's security posture and operational impact of the vulnerability should be assessed to ensure comprehensive mitigation strategies are in place. Additional security measures should be implemented to monitor and restrict user input, ensuring that sanitized user input is used for the 's init' command. This will help prevent similar attacks in the future and enhance the overall security of the system. Furthermore, it is essential to verify the affected scope and severity of the vulnerability through official advisories or CVE records and to plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. By taking these steps, organizations can effectively manage the risk associated with this critical vulnerability and protect their systems from potential attacks. The vulnerability's impact on the organization can be significant if not properly addressed, making it crucial for all stakeholders to be aware of the issue and take appropriate actions to mitigate it. Therefore, it is crucial that all stakeholders take immediate action to address this vulnerability and prevent potential security breaches. The CVE-2026-51190 record indicates a critical vulnerability in Serverless-Devs @serverless-devs/s version <= 3.1.11, and users should take necessary precautions to protect their systems. By prioritizing patching and implementing additional security措施

Technical summary

The 's init' command in Serverless-Devs @serverless-devs/s version <= 3.1.11 is vulnerable to OS command injection. The command passes unsanitized user input to child_process.spawn() with shell: true. An attacker can exploit this by providing a URL ending in '.git' as an argument, bypassing the only input check. This allows for arbitrary OS commands to be executed when a user runs 's init' with an attacker-controlled argument.

Defensive priority

Serverless-Devs users should prioritize patching to prevent potential OS command injection attacks.

Recommended defensive actions

• Update Serverless-Devs @serverless-devs/s to a version greater than 3.1.11
• Use sanitized user input for the 's init' command
• Implement additional security measures to monitor and restrict user input
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE-2026-51190 record indicates a critical vulnerability in Serverless-Devs @serverless-devs/s version <= 3.1.11. The 's init' command passes unsanitized user input to child_process.spawn() with shell: true, allowing for OS command injection. A URL ending in '.git' bypasses input checks, enabling attacks when users run 's init' with attacker-controlled arguments.

Official resources