High 8.2Published Jun 24, 2026

CVE-2026-56245Supabase Capgo - Unauthenticated Cross-Tenant Build-Time Accounting Poisoning via record_build_time RPC

Updated under an hour ago (Oct 27, 2026, 5:30 AM ET)

Does this affect you?

It affects Cap-go capgo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Cap-go capgo

Exploited in the last 30 days

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: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Weakness (CWE): CWE-269
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Cap-go capgo cap_go:capgo (from the name)	before 12.128.2; 12.128.2 not affected	CNA record

References

References

https://github.com/Cap-go/capgo/security/advisories/GHSA-42f8-v563-5763	vendor-advisory
https://www.vulncheck.com/advisories/supabase-capgo-unauthenticated-cross-tenant-build-time-accounting-poisoning-via-record-build-time-rpc	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.