What’s Vulnerable › Vulnerabilities

CVE-2021-36783: Rancher: Failure to properly sanitize credentials in cluster template answers

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-07 · updated 2026-06-17
• Weakness: CWE-522

Description

A Insufficiently Protected Credentials vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners and Project Members to read credentials, passwords and API tokens that have been stored in cleartext and exposed via API endpoints. This issue affects: SUSE Rancher Rancher versions prior to 2.6.4; Rancher versions prior to 2.5.13.

Affected products

• SUSE Rancher: from 2.5.0 before 2.5.13; from 2.6.0 before 2.6.4 — fixed in 2.5.13, 2.6.4

How to fix

Upgrade to a fixed version: SUSE Rancher 2.5.13, 2.6.4. Check the vendor advisory for mitigations.

References

• https://bugzilla.suse.com/show_bug.cgi?id=1193990
• https://github.com/rancher/rancher/security/advisories/GHSA-8w87-58w6-hfv8
• https://bugzilla.suse.com/show_bug.cgi?id=1193990
• https://github.com/rancher/rancher/security/advisories/GHSA-8w87-58w6-hfv8

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