CVE-2026-104615

Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace

Published Oct 30, 2026 CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
First Time appeared Suse
Suse rancher
Weaknesses CWE-290
CPEs cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*
Vendors & Products Suse
Suse rancher
References
Metrics cvssV3_1

{'score': 7.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
suse
Published
Updated
Nov 6, 2026, 4:23 PM
Reserved
Oct 2, 2026, 4:18 AM
Status
Awaiting Analysis
Published
Oct 30, 2026, 4:17 PM
Modified
Nov 6, 2026, 5:17 PM