---
id: CVE-2026-101891
title: >-
  An improper access control vulnerability in an internal API service on
  WatchGuard Access Points allows an unauthenticated attacker with network
  access to the AP to obtain a valid API session.
summary: >-
  An improper access control vulnerability in an internal API service on
  WatchGuard Access Points allows an unauthenticated attacker with network
  access to the AP to obtain a valid API session.
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-284
  - CWE-923
vendor: WatchGuard
product: WatchGuard AP
affected:
  - ap >= 1.0 < 3.4.8
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T18:17:17.600'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101891'
references:
  - url: 'https://psirt.watchguard.com/CVE-2026-101891'
    label: 5d1c2695-1a31-4499-88ae-e847036fd7e3
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-28T17:20:19.372937Z'
cvssSource: cna
ingestedAt: '2026-09-28T17:16:27.808Z'
---

## Overview

An improper access control vulnerability in an internal API service on WatchGuard Access Points allows an unauthenticated attacker with network access to the AP to obtain a valid API session.

## Remediation

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