PatchTheCVECVE-2026-71404: A flaw was found in Rancher Manager
CVE-2026-71404 is a high-severity flaw (CVSS 8.7) affecting rancher. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persi
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.7 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 64%) |
| CISA exploited list | No |
| Weakness | CWE-639 |
| Published | 2026-09-03 |
| Last modified | 2026-09-18 |
Last updated 2026-09-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-71404?
rancher: upgrade to 2.15.1. Exact commands for each OS are on this page.
Is CVE-2026-71404 being exploited?
CVE-2026-71404 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-71404 affect?
CVE-2026-71404 affects rancher. Severity is high (CVSS 8.7). A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user
How urgent is CVE-2026-71404?
Priority 40/100. High severity
Software pages
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