Medium severity · published Jul 8, 2026
CVE-2026-56284
Capgo - Unauthenticated Metrics Disclosure via get_total_metrics RPC
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
capgo · Cap-go
before 12.128.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56284
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56284
github.com
https://github.com/Cap-go/capgo/security/advisories/GHSA-h5jf-xgvh-hgjw
www.vulncheck.com
https://www.vulncheck.com/advisories/capgo-unauthenticated-metrics-disclosure-via-get-total-metrics-rpc
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