HIGH 8.8 NVD
CVE-2026-55997
Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext w
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.
References
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997
- https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-08-05 via NVD.
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