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.
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Wed, 05 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 05 Aug 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Suse
Suse rancher |
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| Vendors & Products |
Suse
Suse rancher |
Wed, 05 Aug 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Cluster Existence Oracle via Unauthenticated Import Endpoint | |
| Weaknesses | CWE-204 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: suse
Published:
Updated: 2026-08-05T13:13:02.031Z
Reserved: 2026-06-18T09:26:55.988Z
Link: CVE-2026-55998
Updated: 2026-08-05T13:12:57.879Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-05T10:00:03Z
Weaknesses