CVE-2026-88406

FalkorDB (Redis module) v4.20.1 to v4.20.4 was discovered to contain a stack overflow in the _ValidateUnion_Clauses function (/ast/ast_validations.c). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

  • Published Sep 21, 2026
  • CVSS 7.5 high
  • 0.5% chance of exploitation in the next 30 days (EPSS)

CVE-2026-88406 at the National Vulnerability Database