CVE-2026-56252
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.
- Score
- CVSS 3.1 5.4 Medium
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-07-12
- Last modified
- 2026-10-25
- Weaknesses
- CWE-863
Affected products
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
