---
id: CVE-2026-7827
title: >-
  A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph
  decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB
  before 4.18.4 allows a remote attacker who can issue Redis replication
  commands (for …
summary: >-
  A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph
  decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB
  before 4.18.4 allows a remote attacker who can issue Redis replication
  commands (for …
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-121
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T05:16:45.447'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7827'
references:
  - url: >-
      https://github.com/FalkorDB/FalkorDB/commit/7d15431aadf37588fadc2578b90c3afb5e8daa94
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
  - url: 'https://github.com/FalkorDB/FalkorDB/pull/1973'
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
  - url: 'https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4'
    label: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
tags:
  - nvd
ingestedAt: '2026-10-09T05:26:07.006Z'
---

## Overview

A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.4 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service and possibly execute arbitrary code by supplying a crafted RDB stream with an attacker-controlled entity property count. The count sizes two variable-length arrays on the thread stack with no upper bound, and the decoder then fills them with attacker-supplied values.

## Remediation

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