CVE-2026-6266

Published: May 4, 2026Modified: Jul 15, 2026

8.3

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Exploitability: 2.8 / Impact: 5.5

Source: secalert@redhat.com (Secondary)

Description

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.

Related CWEs

Authentication Bypass by Primary Weakness

The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

References (11)

https://access.redhat.com/errata/RHSA-2026:13508

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:13512

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:13545

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-6266

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2458142

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:13508

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:13512

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:13545

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/security/cve/CVE-2026-6266

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://bugzilla.redhat.com/show_bug.cgi?id=2458142

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6266.json

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

No history available yet.