Supabase Capgo before 12.128.2 contains an authorization bypass vulnerability in the SECURITY DEFINER recordbuildtime RPC function that allows unauthenticated attackers to insert arbitrary build-time records. Attackers can exploit this by calling POST /rest/v1/rpc/recordbuildtime with a public API key to poison billing and quota data for any organization, enabling resource exhaustion and cross-tenant billing manipulation.
{
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56245.json",
"cwe_ids": [
"CWE-269"
]
}