Description
Flux is an open and extensible continuous delivery solution for Kubernetes. Path Traversal in the kustomize-controller via a malicious `kustomization.yaml` allows an attacker to expose sensitive data from the controller’s pod filesystem and possibly privilege escalation in multi-tenancy deployments. Workarounds include automated tooling in the user's CI/CD pipeline to validate `kustomization.yaml` files conform with specific policies. This vulnerability is fixed in kustomize-controller v0.24.0 and included in flux2 v0.29.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| fluxcd | flux2 | flux2 < v0.29.0, kustomize-controller < v0.24.0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/fluxcd/flux2 | < 0.29.0 | 0.29.0 | GHSA-j77r-2fxf-5jrw |
| Go | github.com/fluxcd/kustomize-controller | < 0.24.0 | 0.24.0 | GHSA-j77r-2fxf-5jrw |