CVE-2026-84683 Cross-site scripting in Red Hat Ansible Automation Platform 2.5 for RHEL 8
Stored XSS in Ansible Automation Platform allows attackers to execute JavaScript in higher-privileged users' sessions via malicious ANSI hyperlinks in job outputs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-84683?
CVE-2026-84683 is a high-severity cross-site scripting vulnerability in Red Hat Ansible Automation Platform 2.5 for RHEL 8, published on 23 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A flaw was found in Red Hat Ansible Automation Platform's automation- controller. The HTML view of job, ad hoc command, project update, and inventory update standard output escapes HTML metacharacters but does not remove ANSI terminal escape sequences before conversion to HTML. An ANSI OSC 8 hyperlink sequence in the output is expanded into an HTML anchor whose href is not scheme- filtered or escaped, so a low-privileged user who can produce output -- or an external party whose data a playbook echoes -- can embed a javascript: link that is rendered into a text/html response with no Content-Security-Policy. When a higher-privileged user views the output page and clicks the link, attacker- controlled JavaScript executes in their authenticated session, allowing actions as that user up to full platform takeover.
Weakness: CWE-79
Which versions are affected by CVE-2026-84683?
How do I fix CVE-2026-84683?
Apply the vendor's patch.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-84683 being exploited?
There is no known exploitation of CVE-2026-84683 in the wild and no public exploit code.
Sources
Also known as GHSA-3p43-vjq9-4h46.