CVE-2026-56079
Capgo - Cross-Tenant Authorization Bypass via PostgREST Webhook Access
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 19, 2026
- Updated
- Jun 22, 2026
- Reserved
- Jun 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products
| Product | Versions |
|---|---|
CapgoCapgo |
|
References
- GHSA Advisory GHSA-hj3h-v877-g5rxvendor-advisory
- VulnCheck Advisory: Capgo - Cross-Tenant Authorization Bypass via PostgREST Webhook Accessthird-party-advisory
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