CVE-2026-56252

Description

Capgo before 12.128.2 contains a scope isolation vulnerability in the POST /webhooks/test endpoint that allows app-scoped API keys to invoke org-scoped webhook operations. Attackers with app-scoped credentials can trigger signed outbound webhook deliveries for arbitrary organization webhooks outside their declared app boundary, bypassing the limited_to_apps authorization check.

CVSS Vector

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-qvr7-f6j6-64wp
• https://www.vulncheck.com/advisories/capgo-scope-isolation-failure-in-webhook-test-endpoint