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CVE-2021-36782

CriticalPublished

Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object

Published: Sep 7, 2022
Updated: Sep 17, 2024
Assigning CNA: suse
Evidence observed: Aug 8, 2026

Primary CVSS

9.9/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

4.2%

Low · next 30 days

Percentile: 90.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

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.

Sources

tf-cve-2021-36782Research
A Terraform module to launch Rancher 2.6.6 for blog article about CVE-2021-36782

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