FKIE_CVE-2026-114125

Vulnerability from fkie_nvd - Published: 2026-10-21 18:17 - Updated: 2026-10-22 17:21
Severity
8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, a malicious website can interact with the preview of a running Storybook development server. Insufficient iframe embedding and message-origin restrictions can allow attacker-controlled events to reach the running preview. A developer must visit the malicious website and interact with the injected interface. The attack can cause unauthorized changes to story files and, if a changed file is later executed by a local runtime, arbitrary code execution with the developer's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6.
References
security-advisories@github.comhttps://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da
security-advisories@github.comhttps://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178
security-advisories@github.comhttps://github.com/storybookjs/storybook/commit/97513d999910d071c2b36830495dab63e17d9fe0
security-advisories@github.comhttps://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e
security-advisories@github.comhttps://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed
security-advisories@github.comhttps://github.com/storybookjs/storybook/pull/36726
security-advisories@github.comhttps://github.com/storybookjs/storybook/releases/tag/v10.6.2
security-advisories@github.comhttps://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6
security-advisories@github.comhttps://github.com/storybookjs/storybook/releases/tag/v8.6.19
security-advisories@github.comhttps://github.com/storybookjs/storybook/releases/tag/v9.1.21
security-advisories@github.comhttps://github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "storybook",
          "vendor": "storybookjs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.6.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 9.0.0, \u003c 9.1.21"
            },
            {
              "status": "affected",
              "version": "\u003e= 10.0.0, \u003c 10.6.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 11.0.0-alpha.0, \u003c 11.0.0-alpha.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Storybook is a frontend workshop for building user interface components and pages in isolation. From 8.0.0 until 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6, a malicious website can interact with the preview of a running Storybook development server. Insufficient iframe embedding and message-origin restrictions can allow attacker-controlled events to reach the running preview. A developer must visit the malicious website and interact with the injected interface. The attack can cause unauthorized changes to story files and, if a changed file is later executed by a local runtime, arbitrary code execution with the developer\u0027s privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6."
    }
  ],
  "id": "CVE-2026-114125",
  "lastModified": "2026-10-22T17:21:57.293",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-21T18:17:24.957",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/commit/97513d999910d071c2b36830495dab63e17d9fe0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/pull/36726"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v10.6.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v8.6.19"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v9.1.21"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        },
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-1021"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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