CVE-2026-55997
Long-lived Rancher registration token exposed in plaintext
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.
| CWE | CWE-312 |
| Vendor | rancher |
| Product | rancher |
| Published | Aug 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
rancher / rancher
2.14.0 < 2.14.4 2.13.0 < 2.13.8