CVE-2026-56252

Medium

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductCapgo

PublishedJul 12, 2026

First seenJul 12, 2026

Weakness typeCWE-863Incorrect authorization

How to fix

Update

Capgo Capgo12.128.2 or later

Vendor advisories

github.com/Cap-go/capgo/security/advisories/GHSA-qvr7-f6j6-64wp

Affected products

Product	Affected versions	Fixed in
Capgo Capgo	v < 12.128.2	12.128.2

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