Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-56079 EUVD-2026-38093GHSA-7hf5-4jq6-894f

Capgo - Cross-Tenant Authorization Bypass via PostgREST Webhook Access

Published Jun 19, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

Capgo before 12.128.2 contains a cross-tenant authorization bypass vulnerability in PostgREST endpoints that allows org-scoped read API keys to access other tenants' webhook secrets and delivery logs. Attackers can query the webhooks and webhook_deliveries endpoints to exfiltrate HMAC signing secrets and delivery payloads, enabling forged webhook events against victim organizations.

Affected products

VendorProductAffectedFixed
Capgo Capgo < 12.128.2 12.128.2

References