Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-42f8-v563-5763
- https://www.vulncheck.com/advisories/supabase-capgo-unauthenticated-cross-tenant
- https://github.com/Cap-go/capgo/security/advisories/GHSA-42f8-v563-5763
FAQ
What is CVE-2026-56245?
CVE-2026-56245 is a vulnerability with a CVSS score of 8.2 (HIGH). 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-tim...
How severe is CVE-2026-56245?
CVE-2026-56245 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56245?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.