CVE-2026-56079

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx
https://www.vulncheck.com/advisories/capgo-cross-tenant-authorization-bypass-via-postgrest-webhook-access
https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx

Configurations

No configuration.

History

22 Jun 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx -

19 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 22:16

Updated : 2026-06-22 19:17

NVD link : CVE-2026-56079

Mitre link : CVE-2026-56079

CVE.ORG link : CVE-2026-56079

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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