Path Traversal in Fluxcd Flux2
CVE-2022-24878
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 cause a Denial of Service at the controller level. 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. Users are recommended to upgrade.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- Fluxcd Flux2 — versions flux2 < v0.28.5, >= v0.19.0, kustomize < v0.29.0, >= v0.16.0
- Fluxcd Kustomize-Controller
Weakness classification (CWE)
References
- github.com/fluxcd/flux2/security/advisories/GHSA-7pwf-jg34-hxwp (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-24878?
- CVE-2022-24878 is a high-severity vulnerability in Fluxcd Flux2, classified under Path Traversal. CVSS score: 7.7/10. Published 2022-05-06.
- How severe is CVE-2022-24878?
- High severity. CVSS v3 base score is 7.7 out of 10.