Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| storybookjs | storybook | >= 8.0.0, < 8.6.19, >= 9.0.0, < 9.1.21, >= 10.0.0, < 10.6.2, >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | grafana12.4 | 12.4.13-0.3.hum1 | RHSA-2026:88478 |
| Red Hat Hardened Images 1 | grafana13.1 | 13.1.8-0.4.hum1 | RHSA-2026:88537 |
| Red Hat Hardened Images 1 | grafana13.2 | 13.2.4-0.3.hum1 | RHSA-2026:88541 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | langfuse-3-worker | 3.225.12-r4 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | @storybook/addon-mcp | >= 10.6.0, < 10.6.2 | 10.6.2 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/addon-mcp | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/addon-vitest | >= 9.0.0, < 9.1.21 | 9.1.21 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/addon-vitest | >= 10.0.0, < 10.6.2 | 10.6.2 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/addon-vitest | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/core | >= 8.0.0, < 8.6.19 | 8.6.19 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/core-server | >= 8.0.0, < 8.6.19 | 8.6.19 | GHSA-f2ph-cmg5-wxc8 |
| npm | @storybook/experimental-addon-test | >= 8.0.0, < 8.6.19 | 8.6.19 | GHSA-f2ph-cmg5-wxc8 |
| npm | storybook | >= 8.0.0, < 8.6.19 | 8.6.19 | GHSA-f2ph-cmg5-wxc8 |
| npm | storybook | >= 9.0.0, < 9.1.21 | 9.1.21 | GHSA-f2ph-cmg5-wxc8 |
| npm | storybook | >= 10.0.0, < 10.6.2 | 10.6.2 | GHSA-f2ph-cmg5-wxc8 |
| npm | storybook | >= 11.0.0-alpha.0, < 11.0.0-alpha.6 | 11.0.0-alpha.6 | GHSA-f2ph-cmg5-wxc8 |
Advisories 3
- RHSA-2026:88541 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:88537 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:88478 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Nov 13, 2026
References
- 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/97513d999910d071c2b36830495dab63e17d9fe0
- https://github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e
- https://github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed
- 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