CVE-2026-34604 @tinacms/graphql's `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junctions

Tina is a headless content management system. Prior to version 2.2.2, @tinacms/graphql uses string-based path containment checks in FilesystemBridge. That blocks plain ../ traversal, but it does not resolve symlink or junction targets. If a symlink/junction already exists under the allowed conten...

Symlink Attack

Overview @tinacms/graphql is a GraphQL database generating component for Tina, the headless content management system with support for Markdown, MDX, JSON, YAML, and more. Affected versions of this package are vulnerable to Symlink Attack in the FilesystemBridge get, put, delete, and glob methods...

@tinacms/graphql's `FilesystemBridge` Path Validation Can Be Bypassed via Symlinks or Junctions

Summary @tinacms/graphql uses string-based path containment checks in FilesystemBridge: - path.resolvepath.joinbaseDir, filepath - startsWithresolvedBase + path.sep That blocks plain ../ traversal, but it does not resolve symlink or junction targets. If a symlink/junction already exists under the...