ANT-2026-BTRNT5A3 · supabase/supabase · broken-access-control

broken-access-control high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-BTRNT5A3: Server action accepts client-controlled CRM backend targets submitFormAction is exporte...