CVE-2026-56227 (GCVE-0-2026-56227)
Vulnerability from cvelistv5 – Published: 2026-06-20 15:24 – Updated: 2026-06-22 12:45
VLAI
EPSS
VEX
Title
Capgo - Server-Side Request Forgery via Webhook URL Validation
Summary
Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 12:44 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Cap-go/capgo/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/capgo-server… | third-party-advisory |
Impacted products
Date Public
2026-02-10 00:00
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