CVE-2026-56248: Capgo - Unauthenticated Denial-of-Service via audit_logs RLS Policy
Cap-go capgo (capgo-backend) before 12.128.12 contains an unauthenticated denial-of-service vulnerability arising from the auditlogs table's Row-Level Security (RLS) policy when accessed via the Supabase PostgREST API. Because the PostgreSQL query planner executes costly logic before RLS rejection, unfiltered queries to the public.auditlogs endpoint using the public anon key consistently trigger statement timeouts (PostgREST error 57014). Under concurrency, this exhausts database resources and causes cascading HTTP 500 failures on unrelated endpoints (e.g. /orgs), resulting in an application-layer denial of service.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-56248?
The severity of CVE-2026-56248 is rated high with a score of 7.5.
How does CVE-2026-56248 exploit the system?
CVE-2026-56248 exploits an unauthenticated denial-of-service vulnerability through the audit_logs table's Row-Level Security policy.
Who is affected by CVE-2026-56248?
CVE-2026-56248 affects users of Capgo backend versions prior to 12.128.12.
What should I do to mitigate CVE-2026-56248?
To mitigate CVE-2026-56248, upgrade to the Capgo backend version 12.128.12 or later.
Is CVE-2026-56248 an authenticated or unauthenticated vulnerability?
CVE-2026-56248 is an unauthenticated vulnerability, allowing exploits without user authentication.