Information disclosure in Cap-Go Capgo
CVE-2026-56284
Capgo (Cap-go/capgo) before 12.128.2 contains an information disclosure vulnerability in the Supabase PostgREST RPC function public.get_total_metrics(org_id), which is callable by the anon role using only the public sb_publishable_* key. An unauthenticated attacker can probe organization existence and leak sensitive usage metrics including MAU, bandwidth, and install counts by sending POST requests to /rest/v1/rpc/get_total_metrics with valid organization UUIDs.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cap-Go Capgo — versions 0, 12.128.2
Weakness classification (CWE)
References
- github.com/Cap-go/capgo/security/advisories/GHSA-h5jf-xgvh-hgjw (vendor-advisory)
- www.vulncheck.com/advisories/capgo-unauthenticated-metrics-disclosure-via-get-t… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56284?
- CVE-2026-56284 is a medium-severity vulnerability in Cap-Go Capgo, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-07-08.
- How severe is CVE-2026-56284?
- Medium severity. CVSS v3 base score is 5.3 out of 10.