Stack Overflow Vulnerability in FalkorDB Redis Module Affecting Specific Versions
CVE-2026-88406

7.5HIGH

Key Information:

Vendor

FalkorDB

Status
FalkorDB
Vendor
CVE Published:
21 September 2026

What is CVE-2026-88406?

The FalkorDB Redis module versions 4.20.1 through 4.20.4 have been found vulnerable to a stack overflow in the _ValidateUnion_Clauses function located within ast/ast_validations.c. This vulnerability can be exploited by attackers using specially crafted input, leading to a Denial of Service (DoS) condition. The flaw highlights significant security concerns for systems running these versions, prompting the need for immediate attention and remediation.

References

https://github.com/FalkorDB/FalkorDB/issues/2329

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.