CVE-2026-56245CWE-269

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

High · published June 24, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
38.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
EPSS
0.00459 · 38.8th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-06-24T11:53Z
EPSS history
Timeline
  • 24 JUN 11:53Z
    Supabase Capgo - Unauthenticated Cross-Tenant Build-Time Accounting Poisoning via record_build_time RPC
    cvelistv5