{"id":"CVE-2026-56082","title":"Capgo - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPC","summary":"Capgo (Cap-go/capgo) before 12.128.2 contains an improper access control vulnerability in the SECURITY DEFINER PostgREST RPC function public.record_build_time, which is granted to the anon role and callable with only the public Supabase …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cvssSource":"cna","cwe":["CWE-284"],"vendor":"Cap-go","product":"capgo","affected":["capgo < 12.128.2"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-06-22T14:02:30.431148Z"},"exploitAvailable":true,"published":"2026-06-19","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:29.976Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56082","references":[{"url":"https://github.com/Cap-go/capgo/security/advisories/GHSA-42xj-3h9w-26h5","label":"GitHub Security Advisory (GHSA-42xj-3h9w-26h5)"},{"url":"https://www.vulncheck.com/advisories/supabase-unauthenticated-cross-tenant-billing-log-tampering-via-public-record-build-time-rpc","label":"VulnCheck Advisory: Supabase - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPC"}],"tags":["cve.org","exploit-available"],"epss":0.00372,"epssPercentile":0.3133,"ingestedAt":"2026-11-08T14:51:22.370Z","slug":"CVE-2026-56082","body":"## Overview\n\nCapgo (Cap-go/capgo) before 12.128.2 contains an improper access control vulnerability in the SECURITY DEFINER PostgREST RPC function public.record_build_time, which is granted to the anon role and callable with only the public Supabase publishable (sb_publishable_*) anon key. An unauthenticated attacker can insert rows into public.build_logs for arbitrary organizations and, because the function uses ON CONFLICT (build_id, org_id) DO UPDATE, can overwrite existing usage/billing records by reusing the same build_id for a target org. This enables cross-tenant tampering of billing build logs and financial-impact denial of service by inflating billable build time.\n\n## Affected\n\n- `capgo < 12.128.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}