CVE-2026-114125High· 8.6▾ TwilightStorybook 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 develop…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 47.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
8.6 → 8.8
critical → high
0.4% → 0.4%
Last analysed / modified upstream
8.8 → 8.6
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.
storybook >= 8.0.0, < 8.6.19storybook >= 9.0.0, < 9.1.21storybook >= 10.0.0, < 10.6.2storybook >= 11.0.0-alpha.0, < 11.0.0-alpha.6Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
storybook >= 8.0.0, < 8.6.19storybook >= 9.0.0, < 9.1.21storybook >= 10.0.0, < 10.6.2storybook >= 11.0.0-alpha.0, < 11.0.0-alpha.6@storybook/core >= 8.0.0, < 8.6.19@storybook/core-server >= 8.0.0, < 8.6.19@storybook/experimental-addon-test >= 8.0.0, < 8.6.19@storybook/addon-vitest >= 9.0.0, < 9.1.21@storybook/addon-vitest >= 10.0.0, < 10.6.2@storybook/addon-vitest >= 11.0.0-alpha.0, < 11.0.0-alpha.6@storybook/addon-mcp >= 10.6.0, < 10.6.2@storybook/addon-mcp >= 11.0.0-alpha.0, < 11.0.0-alpha.6Patched in:
storybook 8.6.19storybook 9.1.21storybook 10.6.2storybook 11.0.0-alpha.6@storybook/core 8.6.19@storybook/core-server 8.6.19@storybook/experimental-addon-test 8.6.19@storybook/addon-vitest 9.1.21@storybook/addon-vitest 10.6.2@storybook/addon-vitest 11.0.0-alpha.6@storybook/addon-mcp 10.6.2@storybook/addon-mcp 11.0.0-alpha.6Source: https://github.com/advisories/GHSA-f2ph-cmg5-wxc8
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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