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

26 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una vulnerabilidad en la pasarela AAP. La estrategia de autoenlace de usuarios, introducida en AAP 2.6, enlaza automáticamente una identidad de un Proveedor de Identidad (IDP) externo a una cuenta de usuario AAP existente basándose en la coincidencia de correos electrónicos sin verificar la propiedad del correo electrónico. Esto permite a un atacante remoto secuestrar potencialmente la cuenta de una víctima u obtener acceso no autorizado a otras cuentas, incluyendo cuentas administrativas, manipulando el correo electrónico proporcionado por el IDP.

Information

Published : 2026-05-04 14:16

Updated : 2026-10-26 19:10

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."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en la pasarela AAP. La estrategia de autoenlace de usuarios, introducida en AAP 2.6, enlaza autom\u00e1ticamente una identidad de un Proveedor de Identidad (IDP) externo a una cuenta de usuario AAP existente bas\u00e1ndose en la coincidencia de correos electr\u00f3nicos sin verificar la propiedad del correo electr\u00f3nico. Esto permite a un atacante remoto secuestrar potencialmente la cuenta de una v\u00edctima u obtener acceso no autorizado a otras cuentas, incluyendo cuentas administrativas, manipulando el correo electr\u00f3nico proporcionado por el IDP."}], "lastModified": "2026-10-26T19:10:00.163", "sourceIdentifier": "secalert@redhat.com"}