CVE-2023-24539

A flaw was found in golang where angle brackets (<>) were not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character could result in the CSS context unexpectedly closing, allowing for the injection of unexpected HMTL if executed with untrusted input.

For Red Hat Enterprise Linux,

• Conmon uses go in unit testing, but not functionally in the package. Go is used only in test files, not in the actual code. Thus, conmon is not affected.
• The Go templates in Grafana do not contain any javascript. Thus, it is not affected.
• Ignition does not make use of html/template.

In Red Hat Advanced Cluster Management for Kubernetes (RHACM), the affected containers are behind OpenShift OAuth authentication. This restricts access to the vulnerable golang html/templates to authenticated users only, therefore, the impact is low.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.