CVE-2026-56079
HIGH EPSS 15.2%
Published Jun 19, 20261w ago · Modified Jun 22, 20261w ago
7.1 CVSS 4.0
Published Jun 19, 2026 1w ago
Last Modified Jun 22, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
15.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
References 2
- github.com https://github.com/Cap-go/capgo/security/advisories/GHSA-hj3h-v877-g5rx
- vulncheck.com https://www.vulncheck.com/advisories/capgo-cross-tenant-authorization-bypass-via-postgrest-webhook-access
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.