CVE-2026-56252
Capgo - Scope Isolation Failure in Webhook Test Endpoint
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jul 12, 2026
- Updated
- Jul 13, 2026
- Reserved
- Jun 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
CapgoCapgo |
|
References
- GitHub Security Advisory (GHSA-qvr7-f6j6-64wp)vendor-advisory
- VulnCheck Advisory: Capgo - Scope Isolation Failure in Webhook Test Endpointthird-party-advisory
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