Rancher vulnerabilities and fixes

CVEs that mention Rancher, ranked by priority. 6 tracked.

Rancher has 6 tracked vulnerabilities, 2 critical. A fixed release or vendor patch exists for 5. Most recent: 2026-08-05. Highest priority: CVE-2023-22647 (score 48/100).

• CVE-2023-22647 CRITICAL 9.9 UPGRADE An Improper Privilege Management vulnerability in SUSE Rancher allowed standard users to leverage their existi
• CVE-2022-43760 HIGH 8.4 UPGRADE An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in SUSE
• CVE-2026-44945 CRITICAL 9.1 A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersona
• CVE-2026-59675 HIGH 7.5 When API audit logging is enabled, the middleware reads the entire HTTP request body into memory without enfor
• CVE-2023-22648 HIGH 8.0 UPGRADE A Improper Privilege Management vulnerability in SUSE Rancher causes permission changes in Azure AD not to be
• CVE-2026-55996 MEDIUM 4.3 A denial-of-service vulnerability was identified in multiple TLS listeners in Rancher

FAQ

How do I fix Rancher vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Rancher being exploited right now?

None of the tracked Rancher CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which Rancher CVE should I patch first?

CVE-2023-22647 currently ranks highest (48/100): An Improper Privilege Management vulnerability in SUSE Rancher allowed standard users to leverage their existi.

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