High severity · published May 4, 2026
CVE-2026-6266
Aap-controller: aap-gateway: account hijacking and unauthorized access via unverified email linking
8.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Ansible Automation Platform 2.6 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Ansible Automation Platform 2.6 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor, CISA
Affected product
RH
Red Hat Ansible Automation Platform 2.5 for RHEL 8
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6266
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6266
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13508
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13512
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:13545
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-6266
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2458142
security.access.redhat.com
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6266.json
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