« Back to list

CVE-2022-36049

Status: ModifiedHigh (7.5)—

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.

Read full descriptionShow less

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Fluxcd — Flux2Fluxcd — Helm-controllerHelm — Helm

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2022-36049",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-36049",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-23T14:01:18.559491Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "fluxcd",
          "product": "flux2",
          "versions": [
            {
              "status": "affected",
              "version": ">= 0.0.4, < 0.23.0"
            },
            {
              "status": "affected",
              "version": ">= 0.0.17, < 0.32.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-09-07T21:15:08.483",
  "references": [
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Flux2 es una herramienta para mantener los clusters de Kubernetes sincronizados con las fuentes de configuración, y el controlador Helm de Flux es un operador de Kubernetes que permite administrar de forma declarativa los lanzamientos de gráficos de Helm. Helm-controller está estrechamente integrado con el SDK de Helm. Una vulnerabilidad encontrada en el SDK de Helm que afecta a flux2 versiones v0.0.17 hasta v0.32.0 y a helm-controller versiones v0.0.4 hasta v0.23.0, permite que determinadas entradas de datos causen un alto consumo de memoria. En algunas plataformas, esto podría causar que el controlador entre en pánico y deje de procesar las conciliaciones. En un entorno de clústeres compartidos con múltiples inquilinos, un inquilino podría crear un HelmRelease que hace que el controlador entre en pánico, denegando a todos los demás inquilinos la reconciliación de sus HelmRelease. Los parches están disponibles en flux2 versión v0.32.0 y helm-controller versión v0.23.0"
    }
  ],
  "lastModified": "2026-06-17T04:52:48.740",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CF12F100-CF74-44E7-9CA3-587E32370849",
              "versionEndExcluding": "3.9.4",
              "versionStartIncluding": "3.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fluxcd:flux2:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "29EFFD48-5825-4DB2-9D8B-44AE793C41F1",
              "versionEndExcluding": "0.32.0",
              "versionStartIncluding": "0.0.17"
            },
            {
              "criteria": "cpe:2.3:a:fluxcd:helm-controller:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D3138403-4B4C-4C3D-A5BF-816E148A7799",
              "versionEndExcluding": "0.23.0",
              "versionStartIncluding": "0.0.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}