CVE-2026-93538 SUSE Rancher Fleet - Broken Access Control

SUSE Rancher Fleet < 0.16.1, 0.15 < 0.15.6, 0.14 < 0.14.10, 0.13 < 0.13.15, 0.12 < 0.12.19 contains a broken access control caused by improper cluster label validation during agent-initiated cluster registration, letting attackers register clusters that satisfy targeting rules of other tenants, exploit requires ability to register clusters in shared Fleet workspace namespaces.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-290

Vendor fix

Upgrade to versions 0.16.1, 0.15.6, 0.14.10, 0.13.15, 0.12.19 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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