---
title: "CVE-2026-7826: FalkorDB - Out-of-Bounds Read"
description: "FalkorDB < 4.18.4 contains a heap-based out-of-bounds read caused by improper bounds checking in BufferSerializerIOv2_ReadBuffer function, letting remote attackers issuing Redis replication commands cause denial of service or memory disclosure, exploit requires ability to send replication commands."
url: https://panop.io/threat-heartbeat/CVE-2026-7826/
---

# CVE-2026-7826 FalkorDB - Out-of-Bounds Read

FalkorDB < 4.18.4 contains a heap-based out-of-bounds read caused by improper bounds checking in BufferSerializerIOv2\_ReadBuffer function, letting remote attackers issuing Redis replication commands cause denial of service or memory disclosure, exploit requires ability to send replication commands.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.43% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-7826)

## Details

Type

Out-of-Bounds Read

Impact

Denial Of Service, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Published

9 October 2026

Updated

15 October 2026

Weakness

[CWE-125](https://cwe.mitre.org/data/definitions/125.html)

## Vendor fix

Upgrade to version 4.18.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-7826](https://nvd.nist.gov/vuln/detail/CVE-2026-7826)
- [https://github.com/FalkorDB/FalkorDB/commit/55d986f45ecd5d80f7a9e5e138e8b0f96535b48c](https://github.com/FalkorDB/FalkorDB/commit/55d986f45ecd5d80f7a9e5e138e8b0f96535b48c)
- [https://github.com/FalkorDB/FalkorDB/pull/1972](https://github.com/FalkorDB/FalkorDB/pull/1972)
- [https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4](https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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