CVE-2026-56079
Received Received - Intake
Cross-Tenant Authorization Bypass in Capgo

Publication date: 2026-06-19

Last updated on: 2026-06-19

Assigner: 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.
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Meta Information
Published
2026-06-19
Last Modified
2026-06-19
Generated
2026-06-20
AI Q&A
2026-06-20
EPSS Evaluated
N/A
NVD
CVE-2026-56079
EUVD
EUVD-2026-38093
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
capgo capgo to 12.128.2 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

This vulnerability exists in Capgo versions before 12.128.2 and involves a cross-tenant authorization bypass in PostgREST endpoints.

Specifically, org-scoped read API keys can improperly access webhook secrets and delivery logs belonging to other tenants.

Attackers can query the webhooks and webhook_deliveries endpoints to exfiltrate HMAC signing secrets and delivery payloads.

This enables attackers to forge webhook events against victim organizations.

Impact Analysis

The vulnerability allows attackers to access sensitive webhook secrets and delivery logs from other tenants.

With these secrets, attackers can forge webhook events, potentially causing unauthorized actions or data manipulation within victim organizations.

This can lead to data breaches, unauthorized access, and compromise of the integrity of webhook communications.

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