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CVE-2026-84721— Automation-controller: automation-controller: email notification backend allows ssrf via user-controlled smtp host/port (internal port-scan oracle, smtp password exfil)

Quick assessment

Affected
Red Hat Red Hat Ansible Automation Platform 2.7
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Ansible Automation Platform 的 automation-controller 邮件通知后端中发现了一个服务器端请求伪造（SSRF）漏洞。该邮件后端将用户提供的 SMTP 主机和端口（来自通知模板）直接传递给 SMTP 客户端，而未验证目标地址是否为内部地址、回环地址、链路本地地址或保留地址。具有组织“notification-admin”（通知管理员）权限的已认证用户可以创建或修改指向任意内部地址的邮件通知模板，触发测试，并使控制器任务处理程序向该地址发起原始 TCP 连接。由此产生的

CVSS 6.4 · Medium EPSS 0.17% · P6
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I. Basic Information for CVE-2026-84721

Vulnerability Information
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Vulnerability Title
Automation-controller: automation-controller: email notification backend allows ssrf via user-controlled smtp host/port (internal port-scan oracle, smtp password exfil)
Source: CVE Program / CVE List V5
Vulnerability Description
A server-side request forgery flaw was found in the Ansible Automation Platform automation-controller email notification backend. The email backend passes the user-supplied SMTP host and port from a notification template directly to the SMTP client without validating that the target is not an internal, loopback, link-local, or reserved address. An authenticated user with organization notification-admin permission can create or modify an email notification template pointing at an arbitrary internal address, trigger a test, and have the controller task process open a raw TCP connection to that address. The resulting connection error is reflected back through the notification record, providing a three-state internal port-scan oracle (open, closed, filtered) over the control-plane's cluster network, including the in-cluster Kubernetes API. When a shared organization template holds a stored SMTP password, redirecting the host can also cause that credential to be transmitted to an attacker-controlled server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Ansible Automation Platform 2.7 1789580684 ~ * cpe:/a:redhat:ansible_automation_platform:2.7::el9
Red Hat Red Hat Ansible Automation Platform 2 - cpe:/a:redhat:ansible_automation_platform:2

II. Public POCs for CVE-2026-84721

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III. Intelligence Information for CVE-2026-84721

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Other References for CVE-2026-84721 (3)

Same Patch Batch · Red Hat · 2026-09-23 · 46 CVEs total

CVE-2026-84474 9.9 CRITICAL Automation-controller: automation-controller-container: automation-controller: view_jobtem
CVE-2026-84502 9.9 CRITICAL Automation-controller: automation-controller-container: automation-controller: project scm
CVE-2026-84719 9.9 CRITICAL Automation-controller: automation-controller: workflowjobtemplate /copy/ deep-copy sanitiz
CVE-2026-75884 9.1 CRITICAL Awx: awx: privilege escalation to openshift namespace via pod_spec_override injection in c
CVE-2026-96275 8.8 HIGH Flatpak: flatpak: arbitrary write access as root via extra-data extraction
CVE-2026-84691 8.7 HIGH Automation-controller: automation-controller-container: automation-controller: format stri
CVE-2026-84683 8.7 HIGH Automation-controller: automation-controller-container: automation-controller: stored cros
CVE-2026-76648 8.5 HIGH Automation-controller: automation-controller-container: aap controller: copyapiview.post()
CVE-2026-84486 8.2 HIGH Automation-controller: automation-controller-container: automation-controller: unauthentic
CVE-2026-96512 7.8 HIGH Sudo: sudo: tz environment variable allows bypass of notbefore/notafter time-based authori
CVE-2026-96889 7.8 HIGH Librsvg: use-after-free when xml includes have duplicated entities
CVE-2026-84499 7.7 HIGH Automation-controller: automation-controller-container: automation-controller: write-only
CVE-2026-84706 7.6 HIGH Automation-controller: automation-controller-container: automation-controller: credential
CVE-2026-96541 7.5 HIGH Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake d
CVE-2026-75887 7.5 HIGH Openshift/console: openshift/console: unauthenticated path traversal in i18n locale handle
CVE-2026-88830 7.5 HIGH Busybox: busybox: tls montgomery reduction allocates bytes instead of digits, causing a pr
CVE-2026-88832 7.3 HIGH Busybox: busybox: romfs volume id parsing performs unbounded memcpy into fixed-size label
CVE-2026-85475 7.2 HIGH Automation-controller: automation-controller-container: automation-controller: rsyslog con
CVE-2026-75886 7.2 HIGH Openshift/console: openshift/console: unauthenticated reverse proxy to in-cluster catalogd
CVE-2026-84714 7.1 HIGH Automation-controller: automation-controller: incomplete sanitize_jinja() regex allows jin

Showing top 20 of 46 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Red Hat Ansible Automation Platform 2.7
Same vendor: Red Hat
Same weakness: CWE-918

V. Comments for CVE-2026-84721

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