Flux2 Helm Controller denial of service
Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases. Helm controller is tightly integrated with the Helm SDK. A vulnerability found in the Helm SDK that affects flux2 v0.0.17 until v0.32.0 and helm-controller v0.0.4 until v0.23.0 allows for specific data inputs to cause high memory consumption. In some platforms, this could cause the controller to panic and stop processing reconciliations. In a shared cluster multi-tenancy environment, a tenant could create a HelmRelease that makes the controller panic, denying all other tenants from their Helm releases being reconciled. Patches are available in flux2 v0.32.0 and helm-controller v0.23.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-36049
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:36 UTC · Revision 1
Source evidence
Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases. Helm controller is tightly integrated with the Helm SDK. A vulnerability found in the Helm SDK that affects flux2 v0.0.17 until v0.32.0 and helm-controller v0.0.4 until v0.23.0 allows for specific data inputs to cause high memory consumption. In some platforms, this could cause the controller to panic and stop processing reconciliations. In a shared cluster multi-tenancy environment, a tenant could create a HelmRelease that makes the controller panic, denying all other tenants from their Helm releases being reconciled. Patches are available in flux2 v0.32.0 and helm-controller v0.23.0.
osv:CVE-2022-36049
Complete source record
{
"id": "ac67b2623c4237878b305f7a71b64ab29bd95529ff746cc0fc6d0a05d53b03c2",
"url": "https://osv.dev/vulnerability/CVE-2022-36049",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Flux2 Helm Controller denial of service",
"summary": "Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases. Helm controller is tightly integrated with the Helm SDK. A vulnerability found in the Helm SDK that affects flux2 v0.0.17 until v0.32.0 and helm-controller v0.0.4 until v0.23.0 allows for specific data inputs to cause high memory consumption. In some platforms, this could cause the controller to panic and stop processing reconciliations. In a shared cluster multi-tenancy environment, a tenant could create a HelmRelease that makes the controller panic, denying all other tenants from their Helm releases being reconciled. Patches are available in flux2 v0.32.0 and helm-controller v0.23.0.",
"evidence": "osv:CVE-2022-36049",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2022-36049",
"aliases": [
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"BIT-helm-2022-36049",
"CVE-2022-36049",
"GHSA-p2g7-xwvr-rrw3"
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"database_specific": {
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"modified": "2026-10-28T02:30:52.489346603Z",
"provider": "osv",
"references": [
"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996",
"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36049.json",
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"provider_metadata": {
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"source_id": "core-osv",
"document_id": 521404,
"published_at": "2022-09-07T20:15:13+00:00"
}