CVE-2026-35205 (GCVE-0-2026-35205)
Vulnerability from cvelistv5
Published
2026-04-09 15:06
Modified
2026-07-15 01:02
CWE
  • CWE-636 - Not Failing Securely ('Failing Open')
Summary
Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4.
Impacted products
Vendor Product Version
helm helm Version: >= 4.0.0, < 4.1.4
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35205",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-09T16:04:47.054575Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-09T16:05:00.744Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:helm_cli:4.1::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "helm",
            "product": "Helm CLI 4.1",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "cli-4.1.4",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "datePublic": "2026-04-09T15:06:41.052Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in Helm, a package manager for Kubernetes. A remote attacker could exploit this vulnerability by providing a malicious plugin that lacks a provenance file. Even when signature verification is enabled, Helm would incorrectly install this unverified plugin, bypassing critical security checks. This could lead to arbitrary code execution within the Kubernetes environment, allowing an attacker to gain unauthorized control."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-347",
                "description": "Improper Verification of Cryptographic Signature",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-15T01:02:59.773Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-35205"
          },
          {
            "name": "RHBZ#2456927",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456927"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35205.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:26441"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:26441: Helm CLI 4.1"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-04-09T16:01:08.682Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-04-09T15:06:41.052Z",
            "value": "Made public."
          }
        ],
        "title": "github.com/helm/helm: helm.sh/helm/v4: Helm: Arbitrary code execution due to insufficient plugin provenance verification",
        "workarounds": [
          {
            "lang": "en",
            "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "helm",
          "vendor": "helm",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.1.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-636",
              "description": "CWE-636: Not Failing Securely (\u0027Failing Open\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-09T15:06:41.052Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7"
        },
        {
          "name": "https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f"
        },
        {
          "name": "https://github.com/helm/helm/releases/tag/v4.1.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/releases/tag/v4.1.4"
        },
        {
          "name": "https://helm.sh/docs/topics/provenance/#the-provenance-file",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://helm.sh/docs/topics/provenance/#the-provenance-file"
        }
      ],
      "source": {
        "advisory": "GHSA-q5jf-9vfq-h4h7",
        "discovery": "UNKNOWN"
      },
      "title": "Helm\u0027s plugin verification fails open when .prov is missing, allowing unsigned plugin install"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-35205",
    "datePublished": "2026-04-09T15:06:41.052Z",
    "dateReserved": "2026-04-01T18:48:58.937Z",
    "dateUpdated": "2026-07-15T01:02:59.773Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-35205\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-09T16:04:47.054575Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-09T16:04:50.634Z\"}}], \"cna\": {\"title\": \"Helm\u0027s plugin verification fails open when .prov is missing, allowing unsigned plugin install\", \"source\": {\"advisory\": \"GHSA-q5jf-9vfq-h4h7\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"helm\", \"product\": \"helm\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 4.0.0, \u003c 4.1.4\"}]}], \"references\": [{\"url\": \"https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7\", \"name\": \"https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f\", \"name\": \"https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/helm/helm/releases/tag/v4.1.4\", \"name\": \"https://github.com/helm/helm/releases/tag/v4.1.4\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://helm.sh/docs/topics/provenance/#the-provenance-file\", \"name\": \"https://helm.sh/docs/topics/provenance/#the-provenance-file\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-636\", \"description\": \"CWE-636: Not Failing Securely (\u0027Failing Open\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-04-09T15:06:41.052Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-35205\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-09T16:05:00.744Z\", \"dateReserved\": \"2026-04-01T18:48:58.937Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-04-09T15:06:41.052Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…