Description
Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their `GitRepo`.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SUSE | Rancher | 0.15.0 – < 0.15.1, 0.14.0 – < 0.14.5, 0.13.0 – < 0.13.10, 0.12.0 – < 0.12.14, 0.11.0 – < 0.11.13 | 0.15.1 |
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/fleet | >= 0.15.0, < 0.15.1 | 0.15.1 | GHSA-765j-qfrp-hm3j |
| Go | github.com/rancher/fleet | >= 0.14.0, < 0.14.5 | 0.14.5 | GHSA-765j-qfrp-hm3j |
| Go | github.com/rancher/fleet | >= 0.13.0, < 0.13.10 | 0.13.10 | GHSA-765j-qfrp-hm3j |
| Go | github.com/rancher/fleet | >= 0.12.0, < 0.12.14 | 0.12.14 | GHSA-765j-qfrp-hm3j |
| Go | github.com/rancher/fleet | >= 0.11.0, < 0.11.13 | 0.11.13 | GHSA-765j-qfrp-hm3j |
| Go | github.com/rancher/fleet | >= 0.11.0, < 0.11.13 · >= 0.12.0, < 0.12.14 · >= 0.13.0, < 0.13.10 · >= 0.14.0, < 0.14.5 · >= 0.15.0, < 0.15.1 | 0.11.13, 0.12.14, 0.13.10, 0.14.5, 0.15.1 | GO-2026-5207 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- WID-SEC-2026-1444 Rancher Fleet Helm Deployer: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · May 14, 2026