CVE-2026-6266

A flaw was found in the AAP gateway. The user auto-link strategy, introduced in AAP 2.6, automatically links an external Identity Provider (IDP) identity to an existing AAP user account based on email matching without verifying email ownership. This allows a remote attacker to potentially hijack a victim's account or gain unauthorized access to other accounts, including administrative accounts, by manipulating the IDP-provided email.

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:13508
https://access.redhat.com/errata/RHSA-2026:13512
https://access.redhat.com/errata/RHSA-2026:13545
https://access.redhat.com/security/cve/CVE-2026-6266
https://bugzilla.redhat.com/show_bug.cgi?id=2458142
https://access.redhat.com/errata/RHSA-2026:13508
https://access.redhat.com/errata/RHSA-2026:13512
https://access.redhat.com/errata/RHSA-2026:13545
https://access.redhat.com/security/cve/CVE-2026-6266
https://bugzilla.redhat.com/show_bug.cgi?id=2458142
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6266.json

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-04 14:16

Updated : 2026-08-26 16:16

NVD link : CVE-2026-6266

Mitre link : CVE-2026-6266

CVE.ORG link : CVE-2026-6266

JSON object : View

Products Affected

No product.

CWE

CWE-305

Authentication Bypass by Primary Weakness

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The user auto-link strategy, introduced in AAP 2.6, automatically links an external Identity Provider (IDP) identity to an existing AAP user account based on email matching without verifying email ownership. This allows a remote attacker to potentially hijack a victim's account or gain unauthorized access to other accounts, including administrative accounts, by manipulating the IDP-provided email."}], "lastModified": "2026-08-26T16:16:37.090", "sourceIdentifier": "secalert@redhat.com"}