---
id: CVE-2026-107911
title: >-
  A type confusion vulnerability in the _read_flags function
  (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote
  authenticated attacker who can run GRAPH.QUERY to cause a denial of service
  and possibly disclose or cor…
summary: >-
  A type confusion vulnerability in the _read_flags function
  (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote
  authenticated attacker who can run GRAPH.QUERY to cause a denial of service
  and possibly disclose or cor…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-843
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T06:17:12.733'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107911'
references:
  - url: >-
      https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
  - url: 'https://github.com/FalkorDB/FalkorDB/pull/2170'
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
  - url: 'https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0'
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
tags:
  - nvd
ingestedAt: '2026-10-09T06:27:05.590Z'
---

## Overview

A type confusion vulnerability in the _read_flags function (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote authenticated attacker who can run GRAPH.QUERY to cause a denial of service and possibly disclose or corrupt memory. The function accepts a --bolt argument from any client and casts the following command argument, a Redis string object, to a Bolt client structure without checking its origin; the result-set code then dereferences pointers read from that object. The argument is parsed even when the Bolt endpoint is disabled, so default configurations are affected.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.