Vulnerability Description
A security vulnerability was discovered in Fleet's Helm template preprocessing where templates evaluated by the Fleet controller could reach network resources outside the management cluster. A user who can supply bundle content to a repository referenced by a `GitRepo` resource can cause the Fleet controller to: - Disclose cluster metadata available to the templating context. - Reveal information about hosts reachable from the controller's network position. Because the disclosure channel is name resolution, it may remain effective in environments where outbound traffic is otherwise restricted. The disclosed information is limited to values exposed to the Fleet templating context and to name resolution results. Integrity and availability of managed clusters are not affected. This issue affects Fleet: from 0.12.0 before 0.12.19, from 0.13.0 before 0.13.15, from 0.14.0 before 0.14.10, from 0.15.0 before 0.15.6, and from 0.16.0 before 0.16.1.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-75036?
CVE-2026-75036 is a documented vulnerability. A security vulnerability was discovered in Fleet's Helm template preprocessing where templates evaluated by the Fleet controller could reach network resources outside the management cluster. A user wh...
How severe is CVE-2026-75036?
CVSS scoring is not yet available for CVE-2026-75036. Check NVD for updates.
Is there a patch for CVE-2026-75036?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.