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CVE-2026-56244 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Capgo before 12.128.2 allows non-admin API keys to read webhook signing secrets via Supabase REST due to insufficient row-level security policies on the webhooks table. Attackers can retrieve the webhook secret and forge valid X-Capgo-Signature headers to send authenticated webhook events to configured receivers, breaking webhook authenticity and integrity.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Cap-go/capgo/security/advisories/GHSA-qrrx-x3qf-x87v	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/Cap-go/capgo/security/advisories/GHSA-qrrx-x3qf-x87v	[email protected]	AdvisoryExploitRemedyVendor
https://www.vulncheck.com/advisories/capgo-webhook-signing-secret-disclosure-via-non-admin-api-key	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
Capgo	< 12.128.2 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 12.128.2moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Jun 24, 2026	New CVE Received	[email protected]
Jun 24, 2026	CVE Modified	CISA-ADP