Vulnerability Description
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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-gfpq-vphf-6gcm
- https://www.vulncheck.com/advisories/capgo-unauthenticated-cross-tenant-metrics-
- https://github.com/Cap-go/capgo/security/advisories/GHSA-gfpq-vphf-6gcm
FAQ
What is CVE-2026-56235?
CVE-2026-56235 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 wit...
How severe is CVE-2026-56235?
CVE-2026-56235 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56235?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.