Description
Incorrect authentication caching in the team member ship expansion of the Rancher Github authentication provider caused it granting principal access to any logged in user, in 2.13 before 2.13.6 and 2.14 before 2.14.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SUSE | Rancher | 2.14.0 – < 2.14.2, 2.13.0 – < 2.13.6 | 2.14.2 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/rancher/rancher | >= 2.14.0, < 2.14.2 | 2.14.2 | GHSA-4j6x-2764-m8gh |
| Go | github.com/rancher/rancher | >= 2.13.0, < 2.13.6 | 2.13.6 | GHSA-4j6x-2764-m8gh |
| Go | github.com/rancher/rancher | < 0.0.0-20260519172014-d0c047bbc6d2 | 0.0.0-20260519172014-d0c047bbc6d2 | GHSA-4j6x-2764-m8gh |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- WID-SEC-2026-1716 Rancher: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026