CVE-2026-114125: Storybook: Missing origin validation in Storybook preview allows code injection from malicious websites
Summary: A malicious website may be able to cause unauthorized file changes in a developer’s project while an affected Storybook development server is running. Under additional conditions, a changed file could be executed by a local runtime with the developer’s privileges. We are not aware of exploitation in the wild.
References
- github.com/advisories/GHSA-f2ph-cmg5-wxc8
- github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da
- github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178
- github.com/storybookjs/storybook/commit/a9ef9345d73224c73e0b81dc2701ec5b465ea9bb
- github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e
- github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed
- github.com/storybookjs/storybook/pull/36726
- github.com/storybookjs/storybook/releases/tag/v10.6.2
- github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6
- github.com/storybookjs/storybook/releases/tag/v8.6.19
- github.com/storybookjs/storybook/releases/tag/v9.1.21
- github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8
- nvd.nist.gov/vuln/detail/CVE-2026-114125
Code Behaviors & Features
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