What is CVE-2022-36049?

CVE-2022-36049 is a high-severity vulnerability in Fluxcd Flux2, classified under Uncontrolled Resource Consumption. CVSS score: 7.7/10. Published 2022-09-07.

How severe is CVE-2022-36049?

High severity. CVSS v3 base score is 7.7 out of 10.

Resource exhaustion in Fluxcd Flux2

CVE-2022-36049

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.

Vulnerability class: DoS (Denial of Service)

Published 2022-09-07 · last modified 2026-06-17.

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: 0.014 (72.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.014 · change: +0.004

Affected products

Fluxcd Flux2 — versions >= 0.0.4, < 0.23.0, >= 0.0.17, < 0.32.0
Fluxcd Helm-Controller
Helm

Weakness classification (CWE)

References

github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3 (Third Party Advisory)
github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh (Third Party Advisory)
bugs.chromium.org/p/oss-fuzz/issues/detail (Mailing List, Third Party Advisory)
bugs.chromium.org/p/oss-fuzz/issues/detail (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-36049?: CVE-2022-36049 is a high-severity vulnerability in Fluxcd Flux2, classified under Uncontrolled Resource Consumption. CVSS score: 7.7/10. Published 2022-09-07.
How severe is CVE-2022-36049?: High severity. CVSS v3 base score is 7.7 out of 10.