CVE-2026-84683 Red Hat Ansible Automation Platform - Stored XSS

Red Hat Ansible Automation Platform automation-controller contains a stored XSS caused by unfiltered ANSI OSC 8 hyperlink sequences in HTML output, letting low-privileged users embed javascript links that execute code when viewed by higher-privileged users, exploit requires output generation by low-privileged user or external data.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Client Script Exec, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Published
23 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version with proper ANSI escape sequence filtering and output sanitization.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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