CVE-2026-104615
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
CVSS Score
7.9
EPSS Score
0.0%
EPSS Percentile
0th
A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token.
| CWE | CWE-290 |
| Vendor | suse |
| Product | rancher |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
High
Affected Versions
SUSE / Rancher
0.16.0 < 0.16.3 0.15.0. < 0.15.17 0.14.0 < 0.14.12 0.13 < 0.13.17 0 ≤ 0.12
References
Credits
https://github.com/Pig-Tail