CVE-2026-84683
Automation-controller: automation-controller-container: automation-controller: stored cross-site scripting in the job stdout html view via ansi osc 8 hyperlink sequences (javascrip
What happened?
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.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| automation-controllerRed Hat | unaffected: 0:4.6.33-1.el8ap to < * | See vendor advisory |
| automation-controllerRed Hat | unaffected: 0:4.6.33-1.el8ap to < * | See vendor advisory |
| automation-controllerRed Hat | unaffected: 0:4.6.33-1.el9ap to < * | See vendor advisory |
| automation-controllerRed Hat | unaffected: 0:4.6.33-1.el9ap to < * | See vendor advisory |
| automation-controllerRed Hat | unaffected: 0:4.7.17-1.el9ap to < * | See vendor advisory |
| automation-controllerRed Hat | unaffected: 0:4.7.17-1.el9ap to < * | See vendor advisory |
| ansible-automation-platform-26/controller-rhel9Red Hat | unaffected: 1789673739 to < * | See vendor advisory |
| ansible-automation-platform-27/controller-rhel9Red Hat | unaffected: 1789580684 to < * | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.
Sources and remediation references
- https://www.cve.org/CVERecord?id=CVE-2026-84683
- https://access.redhat.com/errata/RHSA-2026:71113
- https://access.redhat.com/errata/RHSA-2026:71114
- https://access.redhat.com/errata/RHSA-2026:71177
- https://access.redhat.com/errata/RHSA-2026:71179
- https://access.redhat.com/security/cve/CVE-2026-84683
- https://bugzilla.redhat.com/show_bug.cgi?id=2527128