---
id: CVE-2026-24301
title: Microsoft Copilot Information Disclosure Vulnerability
summary: >-
  Improper neutralization of special elements used in a command ('command
  injection') in Microsoft Copilot allows an unauthorized attacker to disclose
  information over a network.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-77
vendor: Microsoft
product: Copilot Web
affected:
  - copilot_web -
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-18T14:46:29.495886Z'
exploitAvailable: true
published: '2026-08-18'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T20:53:13.054Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-24301'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24301'
    label: Microsoft Copilot Information Disclosure Vulnerability
tags:
  - cve.org
  - exploit-available
  - nvd
epss: 0.01111
epssPercentile: 0.65789
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/CSOAI-ORG/memory-poisoning-axis'
  checkedAt: '2026-10-27T17:03:01.186Z'
ingestedAt: '2026-09-08T18:07:34.893Z'
---

## Overview

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

## Affected

- `copilot_web -`

## Remediation

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