Vulnerability Analysis
Supabase Capgo - Unauthenticated Cross-Tenant Build-Time Accounting Poisoning via record_build_time RPC
CVE-2026-56245
Supabase Capgo before 12.128.2 contains an authorization bypass vulnerability in the SECURITY DEFINER record_build_time RPC function that allows unauthenticated attackers to insert arbitrary build-time records. Attackers can exploit this by calling POST /rest/v1/rpc/record_build_time with a public API key to poison billing and quota data for any organization, enabling resource exhaustion and cross-tenant billing manipulation.
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:-
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EPSS:-
Threat Intelligence Signals
CISA KEV
No
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Ransomware Use
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VulnCheck In-the-Wild
No
Nuclei Template
No
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SSVC Exploitation
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SSVC Automatable
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Identity & Timeline
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| Time to Patch (Days to fix) | - |
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| Exploit DB References | None identified |
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| No affected products specified. | ||
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