CVE-2026-84721 Server-side request forgery in Red Hat Ansible Automation Platform 2
Authenticated users can exploit SSRF in email notifications to scan internal ports and exfiltrate SMTP credentials via attacker-controlled servers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84721?
CVE-2026-84721 is a medium-severity server-side request forgery vulnerability in Red Hat Ansible Automation Platform 2, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-84721?
How do I fix CVE-2026-84721?
No fix has been published for CVE-2026-84721 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-84721 being exploited?
There is no known exploitation of CVE-2026-84721 in the wild and no public exploit code.
Sources
Also known as GHSA-pm79-7whg-hpfr.