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.

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:13512 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):
    * automation-controller: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * automation-controller: PyJWT accepts unknown `crit` header extensions (RFC 7515 4.1.11 MUST violation)     (CVE-2026-32597)
    * automation-controller: denial of service via malformed HTML-like sequences (CVE-2025-69534)
    * automation-controller: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves     (CVE-2026-26007)
    * automation-gateway: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * automation-gateway: Rollup: Remote Code Execution via Path Traversal Vulnerability (CVE-2026-27606)
    * automation-gateway: SVGO: Denial of Service via XML entity expansion (CVE-2026-29074)
    * automation-gateway: ReDoS via $data reference (CVE-2025-69873)
    * automation-gateway-proxy: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
    * python3.12-django-ansible-base: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * python3.12-markdown: denial of service via malformed HTML-like sequences (CVE-2025-69534)
    * python3.12-jwcrypto: JWCrypto: Memory exhaustion via crafted compressed JWE tokens (CVE-2026-39373)
    * python3.12-pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922)
    * python3.12-pyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed RELATIVE-OID     (CVE-2026-23490)
    * python3.12-pyOpenSSL: DTLS cookie callback buffer overflow (CVE-2026-27459)
    * receptor: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    For details about this release, refer to the release notes listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:13508 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):
    * automation-controller: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * automation-controller: DTLS cookie callback buffer overflow (CVE-2026-27459)
    * automation-controller: PyJWT accepts unknown `crit` header extensions (RFC 7515 4.1.11 MUST violation)     (CVE-2026-32597)
    * automation-controller: denial of service via malformed HTML-like sequences (CVE-2025-69534)
    * automation-gateway: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * automation-gateway-proxy: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
    * automation-platform-ui: Rollup: Remote Code Execution via Path Traversal Vulnerability (CVE-2026-27606)
    * automation-platform-ui: minimatch: Denial of Service via specially crafted glob patterns     (CVE-2026-26996)
    * python3.12-django-ansible-base: Account hijacking and unauthorized access via unverified email linking     (CVE-2026-6266)
    * python3.12-markdown: denial of service via malformed HTML-like sequences (CVE-2025-69534)
    * python3.12-jwcrypto: JWCrypto: Memory exhaustion via crafted compressed JWE tokens (CVE-2026-39373)
    * python3.12-pyasn1: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922)
    * python3.12-pyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed RELATIVE-OID     (CVE-2026-23490)
    * python3.12-pyOpenSSL: DTLS cookie callback buffer overflow (CVE-2026-27459)
    * receptor: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    For details about this release, refer to the release notes listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
312098	RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update (Important) (RHSA-2026:13512)	Nessus	Red Hat Local Security Checks	critical
312090	RHEL 10 / 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Important) (RHSA-2026:13508)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2026-6266

high

Tenable Plugins

critical

critical