---
id: CVE-2026-107910
title: >-
  An improper authentication vulnerability in the is_authenticated function
  (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote
  unauthenticated attacker to execute graph queries without credentials through
  the Bolt endpoint
summary: >-
  An improper authentication vulnerability in the is_authenticated function
  (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote
  unauthenticated attacker to execute graph queries without credentials through
  the Bolt endpoint. Th…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-287
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T06:17:12.577'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107910'
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

An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.

## Remediation

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