Junglewise Threat Intelligence

CVE-2026-40346: NocoBase has SSRF in Workflow HTTP Request and Custom Request Plugins

CVE-2026-40346 · Severity: medium · CVSS 6.5 · Published 2026-04-18

Executive brief

NocoBase, a platform for building business applications, contains a vulnerability in its workflow and custom request plugins. These plugins allow the server to make web requests to user-provided addresses without proper safety checks. An authorized user could exploit this to access sensitive internal network services, local databases, or cloud provider credentials that should not be publicly accessible.

Technical details

A Server-Side Request Forgery (SSRF) vulnerability exists in NocoBase's Workflow HTTP Request and Custom Request Action plugins. The application uses the axios library to perform server-side requests based on user-provided URLs without implementing IP range filtering, cloud metadata endpoint blocking, or DNS rebinding protection. An authenticated attacker with permissions to create workflows or custom actions can force the server to make requests to internal network resources (e.g., 127.0.0.1 or 169.254.169.254). This can lead to the theft of cloud IAM credentials or unauthorized interaction with internal services. The issue is addressed in version 2.0.37 by migrating to a guarded 'serverRequest' utility that supports IP/domain whitelisting.

Affected products

  • NocoBase @nocobase/plugin-workflow-request < 2.0.37
  • NocoBase @nocobase/plugin-action-custom-request < 2.0.37

Timeline

  • 2026-04-11: patched: Fix merged into main branch
  • 2026-04-14: disclosed
  • 2026-04-15: advisory

References

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