CVE-2026-75033
Rancher: Cross-Cluster Secret Leakage via Namespace projectId Annotation Spoofing
CVSS Score
7.7
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in Rancher Manager. Project Secrets were propagated into a namespace based only on its `field.cattle.io/projectId` annotation, without verifying that the referenced project belonged to the same downstream cluster. A user able to create namespaces on one cluster could set the annotation to a project ID from another cluster and have that project's secrets copied into a namespace under their control. This issue affects Rancher: before 2.15.1.
| CWE | CWE-639 |
| Vendor | suse |
| Product | rancher |
| Published | Sep 3, 2026 |
| Last Updated | Sep 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
SUSE / Rancher
0 < 2.15.1
References
Credits
Alex Seymour