Home

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 []).

PUBLISHED Reserved 2026-06-19 | Published 2026-06-20 | Updated 2026-06-24 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

Exposure of Sensitive Information to an Unauthorized Actor

Product status

Default status
unaffected

Any version before 12.128.2
affected

12.128.2 (semver)
unaffected

Credits

Judel777 reporter

References

github.com/.../capgo/security/advisories/GHSA-gfpq-vphf-6gcm exploit

github.com/.../capgo/security/advisories/GHSA-gfpq-vphf-6gcm (GHSA Advisory GHSA-gfpq-vphf-6gcm) vendor-advisory

www.vulncheck.com/...nt-metrics-disclosure-via-rpc-functions (VulnCheck Advisory: Capgo - Unauthenticated Cross-Tenant Metrics Disclosure via RPC Functions) third-party-advisory

cve.org (CVE-2026-56235)

nvd.nist.gov (CVE-2026-56235)

Download JSON