CVE-2026-56079
MEDIUM
6.5
CVSS 3.1
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.
Metadata
Severity & Metrics
6.5
MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Capgo | Capgo | — | 0 < 12.128.2, 12.128.2 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-200 | cna | Exposure of Sensitive Information to an Unauthorized Actor |
CVSS scores (2)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 7.1 | HIGH | 4.0 | cna | 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 |
| 6.5 | MEDIUM | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References (2)
- GHSA Advisory GHSA-hj3h-v877-g5rx https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx
- VulnCheck Advisory: Capgo - Cross-Tenant Authorization Bypass via PostgREST Webhook Access https://www.vulncheck.com/advisories/capgo-cross-tenant-authorization-bypass-via-postgrest-webhook-access