---
id: CVE-2026-80092
title: Microsoft Identity Web Elevation of Privilege Vulnerability
summary: >-
  Authentication bypass by assumed-immutable data in Microsoft Identity Web
  allows an authorized attacker to elevate privileges over a network.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-302
vendor: Microsoft
product: microsoft-identity-web
affected:
  - microsoft-identity-web >= >=4.16.0 <4.16.1 < 4.16.1
  - microsoft-identity-web >= <3.16.0 < 3.16.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-17T03:55:57.786472Z'
published: '2026-10-16'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T21:37:13.361Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80092'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80092'
    label: Microsoft Identity Web Elevation of Privilege Vulnerability
tags:
  - cve.org
epss: 0.00617
epssPercentile: 0.49351
ingestedAt: '2026-10-16T18:43:08.659Z'
---

## Overview

Authentication bypass by assumed-immutable data in Microsoft Identity Web allows an authorized attacker to elevate privileges over a network.

## Affected

- `microsoft-identity-web >= >=4.16.0 <4.16.1 < 4.16.1`
- `microsoft-identity-web >= <3.16.0 < 3.16.0`

## Remediation

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