CVE-2026-1046157.9High
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
SUSE · Rancher
Not in CISA KEVFixed in version 0.12
0.2%probability of exploitation in the next 30 days
12th percentile
050100
Higher than 12% of scored CVEs
7.9HighCVSS
LowMediumHighCrit.
DescriptionNVD
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.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 4 Nov.
- SUSE patches critical Rancher Fleet flaw enabling cluster takeoverSecurityOnline · first in our coverage · mentions it in passing
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