CVE-2026-84721 (GCVE-0-2026-84721)

Vulnerability from cvelistv5 – Published: 2026-09-23 19:40 – Updated: 2026-10-16 11:55
VLAI
Title
Automation-controller: automation-controller: email notification backend allows ssrf via user-controlled smtp host/port (internal port-scan oracle, smtp password exfil)
Summary
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.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 13:59 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1082 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:71177 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-84721 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2527220 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Ansible Automation Platform 2.7 Unaffected: 1789580684 , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.7::el9
Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2     cpe:/a:redhat:ansible_automation_platform:2
Create a notification for this product.
Date Public
2026-09-23 00:00
Show details on NVD website
To clipboard 

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