CVE-2026-88406
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFalkorDB (Redis module)
PublishedSep 21, 2026
First seenSep 21, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| FalkorDB FalkorDB (Redis module) | 4.20.1 ≤ v ≤ 4.20.4 | — |
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