Vulnerability details
CVE-2026-55997
rancher rancher
Long-lived Rancher registration token exposed in plaintext
CVSS 3.1
8.8High
Official description
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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (suse) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| rancher | rancher | 2.13.0 ≤ v < 2.13.8 | CVEProject cvelistV5 (CNA) |
| rancher | rancher | 2.14.0 ≤ v < 2.14.4 | CVEProject cvelistV5 (CNA) |
References and advisories
2
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-08-05
- Last updated
- 2026-08-06
- State
- Published
- Assigner (CNA)
- suse
Exploit prediction (EPSS)
0.11%
Probability of exploitation in 30 days
1.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-312Cleartext storage of sensitive information