High severity8.2NVD Advisory· Published Jun 24, 2026· Updated Jun 25, 2026

CVE-2026-56245

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cap Go/Capgo.appllm-fuzzy
Range: <12.128.2

Patches

Vulnerability mechanics

References

github.com/Cap-go/capgo/security/advisories/GHSA-42f8-v563-5763nvd
www.vulncheck.com/advisories/supabase-capgo-unauthenticated-cross-tenant-build-time-accounting-poisoning-via-record-build-time-rpcnvd

News mentions

Capgo: 25 CVEs Disclosed in Single Batch — Auth Bypasses, SQLi, and Missing RLS
Vypr Intelligence · Jun 24, 2026

cvss	0.533
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000