Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-312.
Summary
A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners, Project Members and User Base to use the Kubernetes API to retrieve plaintext version of sensitive data. This issue affects: SUSE Rancher Rancher versions prior to 2.5.16; Rancher versions prior to 2.6.7.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SUSE | Rancher | Rancher to before 2.5.16 | 2.5.16 | Patch available | CNA |
| SUSE | Rancher | Rancher to before 2.6.7 | 2.6.7 | Patch available | CNA |
| — | github.com/rancher/rancher (Go) | 2.5.0 to before 2.5.16 | 2.5.16 | Patch available | GHSA-g7j7-h4q8-8w2f |
| — | github.com/rancher/rancher (Go) | 2.6.0 to before 2.6.7 | 2.6.7 | Patch available | GHSA-g7j7-h4q8-8w2f |
- Rancher VendorSUSE Affected Rancher to before 2.5.16 Fixed in 2.5.16 Patch available CNA
- Rancher VendorSUSE Affected Rancher to before 2.6.7 Fixed in 2.6.7 Patch available CNA
- github.com/rancher/rancher (Go) Vendor— Affected 2.5.0 to before 2.5.16 Fixed in 2.5.16 Patch available GHSA-g7j7-h4q8-8w2f
- github.com/rancher/rancher (Go) Vendor— Affected 2.6.0 to before 2.6.7 Fixed in 2.6.7 Patch available GHSA-g7j7-h4q8-8w2f
Remediation
- Fix · CNA Rancher (SUSE) Fixed in 2.5.16
- Fix · CNA Rancher (SUSE) Fixed in 2.6.7
- Fix · GHSA-g7j7-h4q8-8w2f github.com/rancher/rancher (Go) Fixed in 2.5.16 Advisory →
- Fix · GHSA-g7j7-h4q8-8w2f github.com/rancher/rancher (Go) Fixed in 2.6.7 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
SUSE Rancher 2.5.16, 2.6.7
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2022-13280 Rancher: Downstream cluster privilege escalation through cluster and project role template binding (CRTB/PRTB)Priority MEDIUM 41
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36782
- 2026-10-03 Alias added: GHSA-g7j7-h4q8-8w2f
References
More SUSE Rancher vulnerabilities
- TI-2022-21489 Rancher: Non-random authentication token CVSS 3.1CRITICAL 9.8
- TI-2019-08380 An issue was discovered that affects the following versions of Rancher: v2.0.0 through… CVSS 3.0CRITICAL 9.8
- TI-2023-08827 Improper privilege management in SUSE Rancher CVSS 3.1CRITICAL 9.9
- TI-2023-08823 Improper privilege management in SUSE Rancher CVSS 3.1CRITICAL 9.9
- TI-2022-21491 Rancher: Exposure of sensitive fields CVSS 3.1CRITICAL 9.9
- TI-2021-14904 Rancher: Failure to properly sanitize credentials in cluster template answers CVSS 3.1CRITICAL 9.9
Sources
- CVE-2021-36782 · CVE Program
- CVE-2021-36782 · NVD
- FIRST EPSS
- GHSA-g7j7-h4q8-8w2f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences