CVE-2026-55997Long-lived Rancher registration token exposed in plaintext
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-312
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- suse
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
rancher rancher rancher:rancher (from the name) | from 2.14.0 before 2.14.4; from 2.13.0 before 2.13.8 | CNA record |
References
- https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.