Vulnerability record · CVE-2016-7191 · published 28 September 2016

CVE-2016-7191: Microsoft azure active directory passport improper authentication vulnerability

Microsoft · Azure Active Directory Passport

The Microsoft Azure Active Directory Passport (aka Passport-Azure-AD) library 1.x before 1.4.6 and 2.x before 2.0.1 for Node.js does not recognize the validateIssuer setting, which allows remote attackers to bypass authentication via a crafted token.

8.1 CVSS 3.0 High EPSS 29% · top 1.9% CWE-287 · Improper authentication

8.1CVSS 3.0 base score, v2 4.3

29%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

8References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Azure Active Directory Passport Microsoft

References

Link	Tags
http://www.securityfocus.com/bid/93213	Third Party Advisory
http://www.securitytracker.com/id/1036996
https://github.com/AzureAD/passport-azure-ad/blob/master/SECURITY-NOTICE.MD	MitigationPatchVendor Advisory
https://support.microsoft.com/kb/3187742	MitigationPatchVendor Advisory
http://www.securityfocus.com/bid/93213	Third Party Advisory
http://www.securitytracker.com/id/1036996
https://github.com/AzureAD/passport-azure-ad/blob/master/SECURITY-NOTICE.MD	MitigationPatchVendor Advisory
https://support.microsoft.com/kb/3187742	MitigationPatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-7191), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.