CVE-2026-88412

Deferred Deferred - Pending Action

Integer Overflow in FalkorDB Bulk Insert Component Causes DoS

Publication date: 2026-09-21

Last updated on: 2026-09-24

Assigner: MITRE

Description

An integer overflow in the _BulkInsert_ReadProperty component (/bulk_insert.c) of FalkorDB (Redis module) v4.20.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-21

Last Modified

2026-09-24

Generated

2026-10-12

AI Q&A

2026-09-22

EPSS Evaluated

2026-10-10

NVD

CVE-2026-88412

Affected Vendors & Products

Vendor	Product	Version / Range
falkordb	falkordb	4.20.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

This vulnerability is an integer overflow in the _BulkInsert_ReadProperty component of FalkorDB v4.20.1. It occurs in the file /bulk_insert.c and allows attackers to cause a Denial of Service by sending specially crafted input.

Detection Guidance

This vulnerability involves an integer overflow in FalkorDB's _BulkInsert_ReadProperty component. Detection requires checking for crashes or abnormal behavior in FalkorDB v4.20.1 during bulk insert operations. Monitor logs for segmentation faults or memory errors. No specific commands are provided in the context.

Impact Analysis

The vulnerability can lead to a Denial of Service, meaning the FalkorDB service may become unavailable or unresponsive when processing malicious input. This could disrupt applications relying on FalkorDB for data operations.

Compliance Impact

This vulnerability causes a Denial of Service (DoS) via integer overflow, which could disrupt services handling sensitive data. For GDPR, this may impact availability of personal data processing systems. For HIPAA, it could affect the integrity and availability of protected health information systems.

Mitigation Strategies

Update FalkorDB to a version that patches the integer overflow in _BulkInsert_ReadProperty. If using Redis with the FalkorDB module, verify the installed version is not v4.20.1 and upgrade accordingly.

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