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CVE-2026-114125high8.6

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

Impact

Storybook versions 8.0.0 to 8.6.19, 9.0.0 to 9.1.21, 10.0.0 to 10.6.2, and 11.0.0-alpha.0 to 11.0.0-alpha.6 have a code injection weakness due to missing origin validation, allowing a malicious website to interact with the preview of a running Storybook development server if a developer visits the site. The attack requires the developer to interact with the injected interface.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

storybookjs · GitHub_M

storybook

4 ranges
GitHub_M version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

>= 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

unaffected

unknown

Other versions: unknown

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-114125

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-94 ↗

CWE-94: Improper Control of Generation of Code ('Code Injection')

GitHub_M

Related →
CWE-346 ↗

CWE-346: Origin Validation Error

GitHub_M

Related →
CWE-1021 ↗

CWE-1021: Improper Restriction of Rendered UI Layers or Frames

GitHub_M

Related →
Contributing organizations · 2
GitHub_M

Assigning organization

2026-10-21
CISA-ADP

Additional data publisher

2026-10-28

What changed

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No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

11 sources
github.com/storybookjs/storybook/security/advisories/GHSA-f2ph-cmg5-wxc8
Security advisoryGitHub_M
github.com/storybookjs/storybook/pull/36726
PatchGitHub_M
github.com/storybookjs/storybook/commit/243c06bf8f1e2f09446c44868ea100261e1374da
PatchGitHub_M
github.com/storybookjs/storybook/commit/3be03ec6f11f4616471cebc3fc65c13e1bf8c178
PatchGitHub_M
github.com/storybookjs/storybook/commit/97513d999910d071c2b36830495dab63e17d9fe0
PatchGitHub_M
github.com/storybookjs/storybook/commit/d9b09e332510a88689c71ecc081bbbc2d072476e
PatchGitHub_M
View 5 more references
github.com/storybookjs/storybook/commit/df3fed468c9b4830605f00068c4bc6b7e1e215ed
PatchGitHub_M
github.com/storybookjs/storybook/releases/tag/v10.6.2
Release notesGitHub_M
github.com/storybookjs/storybook/releases/tag/v11.0.0-alpha.6
Release notesGitHub_M
github.com/storybookjs/storybook/releases/tag/v8.6.19
Release notesGitHub_M
github.com/storybookjs/storybook/releases/tag/v9.1.21
Release notesGitHub_M