Is CVE-2026-88406 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-88406?

CVE-2026-88406 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-88406

Description

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.