CVE-2026-56248: high-severity vulnerability in Cap-go capgo
Capgo - Unauthenticated Denial-of-Service via audit_logs RLS Policy
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
Cap-go capgo (capgo-backend) before 12.128.12 contains an unauthenticated denial-of-service vulnerability arising from the audit_logs 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.audit_logs 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Cap-go · capgoRelated CVEs — Cap-go capgo
In the same product, most dangerous first.
CVE-2026-56081CRITICALCap-go - Account Lockout via 2FA Misconfiguration on Unverified EmailEPSS 0.4%CVE-2026-56082HIGHCapgo - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPCEPSS 0.4%CVE-2026-56339HIGHCapgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPCEPSS 0.4%CVE-2026-56080MEDIUMCap-go - Authentication Logic Flaw in Enforce Password PolicyEPSS 0.4%CVE-2026-56235MEDIUMCapgo - Unauthenticated Cross-Tenant Metrics Disclosure via RPC FunctionsEPSS 0.3%CVE-2026-56221HIGHCap-go - SQL Injection in Cloudflare Analytics Engine Queries via cloudflare.tsEPSS 0.3%