--- title: "CVE-2026-114126: Storybook - Remote Code Execution" description: "Storybook 8.0.0 to 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6 contains a remote code execution caused by exposed WebSocket authentication token and weak story-write validation, letting LAN attackers execute code with developer privileges, exploit requires network access to load HTML pages." url: https://panop.io/threat-heartbeat/CVE-2026-114126/ --- # CVE-2026-114126 Storybook - Remote Code Execution Storybook 8.0.0 to 8.6.19, 9.1.21, 10.6.2, and 11.0.0-alpha.6 contains a remote code execution caused by exposed WebSocket authentication token and weak story-write validation, letting LAN attackers execute code with developer privileges, exploit requires network access to load HTML pages. CVSS base score 8.7 /10 High CISA KEV Not listed Public exploit None known Authentication Not required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-114126) ## Details Type Remote Code Execution Impact Remote Code Execution CVSS vector 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/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 Published 21 October 2026 Updated 22 October 2026 Weakness [CWE-22](https://cwe.mitre.org/data/definitions/22.html) ## Vendor fix Update to versions 8.6.19, 9.1.21, 10.6.2, or 11.0.0-alpha.6 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-114126](https://nvd.nist.gov/vuln/detail/CVE-2026-114126) - [https://github.com/storybookjs/storybook/releases/tag/v8.6.19](https://github.com/storybookjs/storybook/releases/tag/v8.6.19) - [https://github.com/storybookjs/storybook/security/advisories/GHSA-px85-f4q5-jh77](https://github.com/storybookjs/storybook/security/advisories/GHSA-px85-f4q5-jh77) - [https://github.com/storybookjs/storybook/commit/5540f03b209cc56c66f56a9c7cb4b2ee5b883ce5](https://github.com/storybookjs/storybook/commit/5540f03b209cc56c66f56a9c7cb4b2ee5b883ce5) - [https://github.com/storybookjs/storybook/commit/a9ef9345d73224c73e0b81dc2701ec5b465ea9bb](https://github.com/storybookjs/storybook/commit/a9ef9345d73224c73e0b81dc2701ec5b465ea9bb) - [https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e](https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e) - [https://github.com/storybookjs/storybook/pull/36726](https://github.com/storybookjs/storybook/pull/36726) - [https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6](https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6) - [https://github.com/storybookjs/storybook/releases/tag/v9.1.21](https://github.com/storybookjs/storybook/releases/tag/v9.1.21) - [https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da](https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da) - [https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178](https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178) - [https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed](https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed) - [https://github.com/storybookjs/storybook/releases/tag/v10.6.2](https://github.com/storybookjs/storybook/releases/tag/v10.6.2) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)