{"id":"CVE-2026-84721","published":"2026-09-23T20:17:18.890","lastModified":"2026-09-24T16:17:12.697","description":"A server-side request forgery flaw was found in the Ansible Automation Platform\nautomation-controller email notification backend. The email backend passes the user-supplied SMTP\nhost and port from a notification template directly to the SMTP client without validating that\nthe target is not an internal, loopback, link-local, or reserved address. An authenticated user\nwith organization notification-admin permission can create or modify an email notification\ntemplate pointing at an arbitrary internal address, trigger a test, and have the controller task\nprocess open a raw TCP connection to that address. The resulting connection error is reflected\nback through the notification record, providing a three-state internal port-scan oracle (open,\nclosed, filtered) over the control-plane's cluster network, including the in-cluster Kubernetes\nAPI. When a shared organization template holds a stored SMTP password, redirecting the host can\nalso cause that credential to be transmitted to an attacker-controlled server.","cvssScore":6.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:71177","tags":[]},{"url":"https://access.redhat.com/security/cve/CVE-2026-84721","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2527220","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}