Description (CNA)
The endpoint /v3/import/{token}_{clusterId}.yaml retrieves the cluster object before validating the token. When a valid cluster ID references a cluster that has private registry secrets configured, a nil pointer dereference in pkg/systemtemplate/private_registry.go causes the request to return HTTP 502 Bad Gateway. For cluster IDs that do not exist, the endpoint returns HTTP 200. This observable difference in response codes constitutes a reliable enumeration oracle.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| SUSE / Rancher | affected 2.14.0 before 2.14.4; affected 2.13.0 before 2.13.8; affected 2.12.0 before 2.12.12; affected 2.11.0 before 2.11.16 |
CWE
CWE-204
References
- https://github.com/rancher/rancher/security/advisories/GHSA-23h9-rr79-r3gh
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55998
ADP enrichment
No English description supplied.
No references supplied.