Summary: A severe vulnerability, identified as CVE-2025-27407, in the graphql-ruby gem poses a significant risk of remote code execution to millions of applications. With a critical CVSS score of 9.1, the flaw arises from improper handling of GraphQL schema loading, enabling attackers to exploit systems ingesting schemas from untrusted sources. Immediate action is required for developers to upgrade to patched versions to mitigate this critical threat.
Affected: graphql-ruby gem
Keypoints :
- Vulnerability CVE-2025-27407 allows remote code execution.
- Affects all versions of graphql-ruby prior to specific patched releases.
- Developers are strongly advised to upgrade immediately to maintain security.
- A critical CVSS score of 9.1 signifies the vulnerability’s severe impact.
- Malicious GraphQL schema definitions can compromise applications that process them.