# 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.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Sep 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-pm79-7whg-hpfr

## 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 (Server-Side Request Forgery)

## 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.

## Is CVE-2026-84721 being exploited?

There is no known exploitation of CVE-2026-84721 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84721 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-84721 in the wild and no public exploit code.

Affected product: Red Hat Ansible Automation Platform 2. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-84721/ (Markdown: https://insights.sbomify.com/CVE-2026-84721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84721
- OSV: https://osv.dev/vulnerability/CVE-2026-84721

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84721/
Summaries are generated and may contain mistakes; the official description above is the record.