Helm contains Denial of service through schema file
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 10 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.
Summary
Helm is a tool for managing Charts, pre-configured Kubernetes resources. Versions prior to 3.10.3 are subject to NULL Pointer Dereference in the_chartutil_ package that can cause a segmentation violation. The _chartutil_ package contains a parser that loads a JSON Schema validation file. For example, the Helm client when rendering a chart will validate its values with the schema file. The _chartutil_ package parses the schema file and loads it into structures Go can work with. Some schema files can cause array data structures to be created causing a memory violation. Applications that use the _chartutil_ package in the Helm SDK to parse a schema file can suffer a Denial of Service when that input causes a panic that cannot be recovered from. Helm is not a long running service so the panic will not affect future uses of the Helm client. This issue has been patched in 3.10.3. SDK users can validate schema files that are correctly formatted before passing them to the _chartutil_ functions.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| helm | helm | before v3.10.3 | v3.10.3 | Patch available | CNA |
| — | helm.sh/helm/v3 (Go) | before 3.10.3 | 3.10.3 | Patch available | GHSA-67fx-wx78-jx33 |
- helm Vendorhelm Affected before v3.10.3 Fixed in v3.10.3 Patch available CNA
- helm.sh/helm/v3 (Go) Vendor— Affected before 3.10.3 Fixed in 3.10.3 Patch available GHSA-67fx-wx78-jx33
Remediation
- Fix · CNA helm (helm) Fixed in v3.10.3
- Fix · GHSA-67fx-wx78-jx33 helm.sh/helm/v3 (Go) Fixed in 3.10.3 Advisory →
Red Hat 3 advisories
- RHSA-2023:5006 Released 2023-10-31 · Red Hat rating ImportantOpenShift Container Platform 4.14.0 bug fix and security update
- Red Hat OpenShift Container Platform 4.14 openshift4/cloud-network-config-controller-rhel8, openshift4/driver-toolkit-rhel9, openshift4/egress-router-cni-rhel8 +47
- RHSA-2023:1326 Released 2023-05-17 · Red Hat rating ImportantOpenShift Container Platform 4.13.0 security update
- Red Hat OpenShift Container Platform 4.13 openshift4/cloud-network-config-controller-rhel8, openshift4/egress-router-cni-rhel8, openshift4/kubevirt-csi-driver-rhel8 +47
- RHSA-2023:1646 Released 2023-04-11 · Red Hat rating ModerateOpenShift Container Platform 4.12.11 security update
- Red Hat OpenShift Container Platform 4.12 openshift4/metallb-rhel8-operator
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services | Affected | No fix yet |
| OpenShift Serverless | Affected | No fix planned: Will not fix |
| OpenShift Service Mesh 2 | Affected | No fix planned: Will not fix |
| OpenShift Service Mesh 2.1 | Affected | No fix planned: Will not fix |
| Red Hat 3scale API Management Platform 2 | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix planned: Will not fix |
| Red Hat Advanced Cluster Security 3 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat Openshift Container Storage 4 | Affected | No fix planned: Out of support scope |
| cert-manager Operator for Red Hat OpenShift | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4.12 | Fixed | RHSA-2023:1646 |
| Red Hat OpenShift Container Platform 4.13 | Fixed | RHSA-2023:1326 |
| Red Hat OpenShift Container Platform 4.14 | Fixed | RHSA-2023:5006 |
Not affected: 7 products
- Cryostat 2
- Red Hat Ansible Automation Platform 1.2
- Red Hat Ansible Automation Platform 2
- Red Hat OpenShift Container Platform 4.12
- Red Hat OpenShift Container Platform 4.13
- Red Hat OpenShift Container Platform 4.14
- Red Hat Openshift Data Foundation 4
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23526
- 2026-10-03 Alias added: GHSA-67fx-wx78-jx33
References
More Helm vulnerabilities
- TI-2024-16848 Dependency management path traversal in helm CVSS 3.1MEDIUM 6.4
- TI-2026-45154 Helm Files.Lines Denial of Service via Empty Chart Files CVSS 4.0MEDIUM 5.3
- TI-2023-10627 getHostByName Function Information Disclosure CVSS 3.1MEDIUM 4.3
- TI-2019-15264 An issue was discovered in Cloud Native Computing Foundation (CNCF) Helm through 3.13.3. CVSS 3.1CRITICAL 9.1
- TI-2019-13497 In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or… CVSS 3.1CRITICAL 9.8
- TI-2019-16052 Improper certificate validation in helm CVSS 3.0CRITICAL 9.8
Sources
- CVE-2022-23526 · CVE Program
- CVE-2022-23526 · NVD
- FIRST EPSS
- GHSA-67fx-wx78-jx33 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-23526 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences