---
id: CVE-2026-88132
title: >-
  Origin validation error in Azure Key Vault allows an unauthorized attacker to
  disclose information over a network.
summary: >-
  Origin validation error in Azure Key Vault allows an unauthorized attacker to
  disclose information over a network.
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-346
vendor: Microsoft
product: Azure Key Vault Client SDK
affected:
  - azure_key_vault_client_sdk -
  - azure-keyvault-administration >= 4.7.1 < 4.8.2
  - azure-keyvault-certificates >= 4.11.2 < 4.9.2
  - azure-keyvault-keys >= 4.11.2 < 4.10.2
  - azure-keyvault-secrets >= 4.11.2 < 4.11.2
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T14:19:03.607'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88132'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88132'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00319
epssPercentile: 0.24755
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T19:55:39.344656Z'
ingestedAt: '2026-10-13T19:43:29.221Z'
---

## Overview

Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.

## Remediation

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