Watch card · compiled automatically, not analysed
CVE-2026-114125
Storybook: Missing origin validation in Storybook preview allows code injection from malicious websites
AI summaryStorybook's preview doesn't check where messages come from, so malicious websites may inject code. Affects developers running Storybook.
Our research pipeline compiles this page from public data. It contains no human judgement from PlainCVE; rely on the original advisories for facts.
Our status
Candidate — Not queued for research yet. Below is public data only.
Key numbers
- CVSS
- 9.4 v4.0
- CISA KEV
- Not listed
- EPSS
- —
- Momentum
- —
Timeline
- 2026-10-21DisclosedGitHub Advisory Database
How much time similar vulnerabilities gave
This item is not mapped to a category yet, so here are the overall numbers: of 390 vulnerabilities disclosed since 2025 and added to KEV, the median time from disclosure to KEV was 5 days; 54% were added within 7 days.
This one: not in KEV so far (that does not mean it is not exploited).
Counts only vulnerabilities CISA has confirmed as exploited; disclosure is the NVD publication date, which can differ from the vendor advisory.
Affected packages (OSV)
| Ecosystem | Package | From | Fixed in |
|---|---|---|---|
| npm | storybook | 8.0.0 | 8.6.19 |
| npm | storybook | 9.0.0 | 9.1.21 |
| npm | storybook | 10.0.0 | 10.6.2 |
| npm | storybook | 11.0.0-alpha.0 | 11.0.0-alpha.6 |
| npm | @storybook/core | 8.0.0 | 8.6.19 |
| npm | @storybook/core-server | 8.0.0 | 8.6.19 |
| npm | @storybook/experimental-addon-test | 8.0.0 | 8.6.19 |
| npm | @storybook/addon-vitest | 9.0.0 | 9.1.21 |
| npm | @storybook/addon-vitest | 10.0.0 | 10.6.2 |
| npm | @storybook/addon-vitest | 11.0.0-alpha.0 | 11.0.0-alpha.6 |
Primary sources
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