CVE-2026-56252CWE-863

Capgo - Scope Isolation Failure in Webhook Test Endpoint

Medium · published July 12, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
19.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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
EPSS
0.00282 · 19.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-07-12T12:06Z
EPSS history
Timeline
  • 12 JUL 12:06Z
    Capgo - Scope Isolation Failure in Webhook Test Endpoint
    cvelistv5