Home/CVE/Flux is an open and extensible continuous delivery solution for Kubernetes. Path Traversal in the kustomize-controller v
CVE

CVE-2022-24878

Flux is an open and extensible continuous delivery solution for Kubernetes. Path Traversal in the kustomize-controller v

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.

HIGH · CVSS 7.7 EPSS 0.0031
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
▤

Affected Products & Versions

2
fluxcd flux2< 0.29.0
fluxcd kustomize-controller< 0.24.0
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/fluxcd/flux2 HIGH fixed in 0.29.0
Go github.com/fluxcd/kustomize-controller HIGH fixed in 0.24.0
▣

Scoring & Timeline

7.7
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2022 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/fluxcd/flux2/security/advisories/GHSA-7pwf-jg34-hxwpThird Party Advisory
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