{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-114125",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-20T21:53:58.472Z",
        "datePublished": "2026-10-21T17:08:12.102Z",
        "dateUpdated": "2026-10-21T17:08:12.102Z"
    },
    "containers": {
        "cna": {
            "title": "Storybook: Missing origin validation in Storybook preview allows code injection from malicious websites",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-94",
                            "lang": "en",
                            "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-346",
                            "lang": "en",
                            "description": "CWE-346: Origin Validation Error",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1021",
                            "lang": "en",
                            "description": "CWE-1021: Improper Restriction of Rendered UI Layers or Frames",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH",
                        "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",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/pull/36726",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/pull/36726"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/commit/97513d999910d071c2b36830495dab63e17d9fe0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/commit/97513d999910d071c2b36830495dab63e17d9fe0"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/releases/tag/v10.6.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/releases/tag/v10.6.2"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/releases/tag/v8.6.19",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/releases/tag/v8.6.19"
                },
                {
                    "name": "https://github.com/storybookjs/storybook/releases/tag/v9.1.21",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/storybookjs/storybook/releases/tag/v9.1.21"
                }
            ],
            "affected": [
                {
                    "vendor": "storybookjs",
                    "product": "storybook",
                    "versions": [
                        {
                            "version": ">= 8.0.0, < 8.6.19",
                            "status": "affected"
                        },
                        {
                            "version": ">= 9.0.0, < 9.1.21",
                            "status": "affected"
                        },
                        {
                            "version": ">= 10.0.0, < 10.6.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 11.0.0-alpha.0, < 11.0.0-alpha.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-21T17:08:12.102Z"
            },
            "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's privileges. This issue is fixed in 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6."
                }
            ],
            "source": {
                "advisory": "GHSA-f2ph-cmg5-wxc8",
                "discovery": "UNKNOWN"
            }
        }
    }
}