CVE-2026-88406

Published Sep 21, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Falkordb
Falkordb falkordb
Vendors & Products Falkordb
Falkordb falkordb
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Stack Overflow in FalkorDB Redis Module Causes Denial of Service in Versions 4.20.1‑4.20.4
Weaknesses CWE-119
Type Values Removed Values Added
Weaknesses CWE-121
Type Values Removed Values Added
Title Stack Overflow in FalkorDB Redis Module Causes Denial of Service in Versions 4.20.1‑4.20.4
Weaknesses CWE-119
Type Values Removed Values Added
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.
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 22, 2026, 2:55 PM
Reserved
Sep 10, 2026, 12:00 AM
Status
Deferred
Published
Sep 21, 2026, 9:17 PM
Modified
Sep 22, 2026, 8:00 PM