vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-56244

Capgo - Webhook Signing Secret Disclosure via Non-Admin API Key

HIGH
7.1
CVSS Score
Published: June 24, 2026 at 11:53 AM UTC
Updated: October 25, 2026 at 11:10 PM UTC
1 product affected across 1 vendorCapgo

Using Capgo by Capgo?

Get instant alerts when new vulnerabilities affect Capgo - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Capgo· Capgonpm
90%
v < 12.128.2
Vendor states this is fixed in 12.128.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://github.com/Cap-go/capgo/security/advisories/GHSA-qrrx-x3qf-x87v
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/capgo-webhook-signing-secret-disclosure-via-non-admin-api-key

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card