npm/@storybook/experimental-addon-test CVE-2026-114125: critical, EPSS 0.38%

Storybook: Missing origin validation in Storybook preview allows code injection from malicious websites

Action: Upgrade @storybook/experimental-addon-test to 8.6.19 or later.

npm i @storybook/experimental-addon-test@8.6.19

Affected

Fixed versions

Sources

• osv: GHSA-f2ph-cmg5-wxc8#npm/@storybook/experimental-addon-test
• https://github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8
• https://github.com/storybookjs/storybook/pull/36726
• https://github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da
• https://github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178
• https://github.com/storybookjs/storybook/commit/a9ef9345d73224c73e0b81dc2701ec5b465ea9bb
• https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e
• https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed
• https://github.com/storybookjs/storybook
• https://github.com/storybookjs/storybook/releases/tag/v10.6.2
• https://github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6
• https://github.com/storybookjs/storybook/releases/tag/v8.6.19
• https://github.com/storybookjs/storybook/releases/tag/v9.1.21

CVE-2026-114125 · published 2026-10-21T17:23:29Z · modified 2026-10-21T17:35:19.889160714Z · JSON