{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0.0"
                  },
                  {
                    "fixed": "8.6.19"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "9.0.0"
                  },
                  {
                    "fixed": "9.1.21"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "10.0.0"
                  },
                  {
                    "fixed": "10.6.2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "11.0.0-alpha.0"
                  },
                  {
                    "fixed": "11.0.0-alpha.6"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "243c06bf8f1e2f09446c44868ea100261e1374da"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "3be03ec6f11f4616471cebc3fc65c13e1bf8c178"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "5540f03b209cc56c66f56a9c7cb4b2ee5b883ce5"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "a9ef9345d73224c73e0b81dc2701ec5b465ea9bb"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "d9b09e332510a88689c71ecc081bbbc2d072476e"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "df3fed468c9b4830605f00068c4bc6b7e1e215ed"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v10.6.2",
                "range": [
                  {
                    "fixed": "5f00d7d0a78e069aa304bdb886da923e012ef2e0"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "original_tag": "v11.0.0-alpha.6",
                "range": [
                  {
                    "fixed": "635ac8e2c2b0466ced380ef8a30344a3de48a32b"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "original_tag": "v8.6.19",
                "range": [
                  {
                    "fixed": "117b95a45b27138796c151b7928ba7956ca6da45"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "original_tag": "v9.1.21",
                "range": [
                  {
                    "fixed": "9abaf68f9a8dd45f0c861e9e1500ba1f6a850e0a"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "49f18e828c3c543f1498ca57347c9f19b09fdc11"
            },
            {
              "fixed": "117b95a45b27138796c151b7928ba7956ca6da45"
            },
            {
              "introduced": "5dd81ae54583e9d445c515fa6640f26de0056592"
            },
            {
              "fixed": "9abaf68f9a8dd45f0c861e9e1500ba1f6a850e0a"
            },
            {
              "introduced": "88a02e67cd158c174542912961d4d2a75fb65d75"
            },
            {
              "fixed": "5f00d7d0a78e069aa304bdb886da923e012ef2e0"
            },
            {
              "introduced": "c496da65ec70a495ed7e49fe8b1ca19180758b4f"
            },
            {
              "fixed": "635ac8e2c2b0466ced380ef8a30344a3de48a32b"
            },
            {
              "fixed": "243c06bf8f1e2f09446c44868ea100261e1374da"
            },
            {
              "fixed": "3be03ec6f11f4616471cebc3fc65c13e1bf8c178"
            },
            {
              "fixed": "5540f03b209cc56c66f56a9c7cb4b2ee5b883ce5"
            },
            {
              "fixed": "a9ef9345d73224c73e0b81dc2701ec5b465ea9bb"
            },
            {
              "fixed": "d9b09e332510a88689c71ecc081bbbc2d072476e"
            },
            {
              "fixed": "df3fed468c9b4830605f00068c4bc6b7e1e215ed"
            }
          ],
          "repo": "https://github.com/storybookjs/storybook",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-px85-f4q5-jh77"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22",
      "CWE-306",
      "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114126.json"
  },
  "details": "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, the Storybook development server can expose its WebSocket authentication token to clients able to load its HTML pages over a local network. A LAN attacker can obtain the token and invoke WebSocket-backed file-writing or testing functionality. Weak story-write validation can allow code to be placed in story files. If the Storybook Vitest addon is installed with an old version of Vitest, the payload can use a Vitest API to write additional files or execute commands. Depending on the payload and local tooling, the attack can lead to 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.",
  "id": "CVE-2026-114126",
  "modified": "2026-10-22T02:30:49.197366165Z",
  "published": "2026-10-21T17:21:29.520Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114126.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/5540f03b209cc56c66f56a9c7cb4b2ee5b883ce5"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/a9ef9345d73224c73e0b81dc2701ec5b465ea9bb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed"
    },
    {
      "type": "FIX",
      "url": "https://github.com/storybookjs/storybook/pull/36726"
    },
    {
      "type": "WEB",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v10.6.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v8.6.19"
    },
    {
      "type": "WEB",
      "url": "https://github.com/storybookjs/storybook/releases/tag/v9.1.21"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/storybookjs/storybook/security/advisories/GHSA-px85-f4q5-jh77"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114126"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Storybook dev server: devices on the same network can obtain the WebSocket token and write code into story files"
}