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Medium 5.3Published Jun 20, 2026

CVE-2026-56235Capgo - Unauthenticated Cross-Tenant Metrics Disclosure via RPC Functions

Updated under an hour ago ()

Does this affect you?

It affects Cap-go capgo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Cap-go capgo before 12.128.2 contains an authorization bypass in several Supabase PostgREST RPC functions (get_app_metrics, get_global_metrics, get_total_metrics) that are granted to the anon role without enforcing org membership or permission checks. An unauthenticated attacker using only the public Supabase API key (sb_publishable_*) can query arbitrary org_id values to disclose cross-tenant usage telemetry (MAU, bandwidth, installs, gets), enumerate app IDs for a target org, and determine org existence via an oracle (valid org returns metrics, invalid returns []).

CVSS
5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-200
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Jun 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Cap-go capgo
cap_go:capgo (from the name)
before 12.128.2; 12.128.2 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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