Cleartext Storage of Sensitive Information Affecting github.com/rancher/rancher/pkg/api/norman/store/cluster package, versions >=2.13.0-alpha1 <2.13.8-alpha2>=2.14.0-alpha1 <2.14.4-alpha2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMRANCHERRANCHERPKGAPINORMANSTORECLUSTER-18600436
- published9 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
CVE-2026-55997 (opens in a new tab)How to fix?
Upgrade github.com/rancher/rancher/pkg/api/norman/store/cluster to version 2.13.8-alpha2, 2.14.4-alpha2 or higher.
Overview
Affected versions of this package are vulnerable to Cleartext Storage of Sensitive Information through the clusterregistrationtoken API/store paths, pkg/capr/planner/agent.go, pkg/provisioningv2/prebootstrap/resolve.go, and pkg/controllers/capr/managesystemagent/managesystemagent.go. An attacker can obtain a long-lived registration token by reading CRT output or the downstream install-script/bootstrap material and then use it to register a rogue node in the cluster. This leaves the downstream cluster’s registration credential exposed to anyone with API access, copied registration commands, or local read access to the generated install script, enabling unauthorized node joins and cluster takeover.