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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/Cap-go/capgo/security/advisories/GHSA-qvr7-f6j6-64wp

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-12 12:16

Updated : 2026-07-13 17:17

NVD link : CVE-2026-56252

Mitre link : CVE-2026-56252

CVE.ORG link : CVE-2026-56252

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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