---
id: CVE-2026-32984
title: Heap buffer overflow in wazuh-authd
summary: >-
  Wazuh authd contains a heap-buffer overflow vulnerability that allows
  attackers to cause memory corruption and malformed heap data by sending
  specially crafted input. Attackers can exploit this vulnerability to trigger a
  denial of servic…
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-125
vendor: Wazuh
product: os_auth
affected:
  - os_auth 3.5.0
  - os_auth 4.3.10
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-31T15:08:46.736075Z'
published: '2026-03-27'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:02:04.351Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-32984'
references:
  - url: 'https://github.com/advisories/GHSA-grjq-p5fg-m24r'
    label: GitHub Security Advisory (GHSA-grjq-p5fg-m24r)
  - url: 'https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd'
tags:
  - cve.org
epss: 0.003
epssPercentile: 0.22925
ingestedAt: '2026-11-08T14:51:22.461Z'
---

## Overview

Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low impact on the availability of the authentication daemon.

## Affected

- `os_auth 3.5.0`
- `os_auth 4.3.10`

## Remediation

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