CVE-2026-114125: Storybook is a frontend workshop for building user interface components and pages in isolation

Routine

HIGH 8.6

CVE-2026-114125 is a high-severity flaw (CVSS 8.6) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 inje

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Active
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-94, CWE-346, CWE-1021
Published	2026-10-21
Last modified	2026-10-22

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-21Published CVE record published
2026-10-22 17:21 UTCUpdated Record last modified

Exact fixes by distribution

npm · storybook · FIXED · 8.6.19 · vulnerable: >= 8.0.0, < 8.6.19 · source

npm install storybook@">=8.6.19" npm ls storybook

npm · @storybook/core · FIXED · 8.6.19 · vulnerable: >= 8.0.0, < 8.6.19 · source

npm install @storybook/core@">=8.6.19" npm ls @storybook/core

npm · @storybook/core-server · FIXED · 8.6.19 · vulnerable: >= 8.0.0, < 8.6.19 · source

npm install @storybook/core-server@">=8.6.19" npm ls @storybook/core-server

Fedora 46 · wasmedge · FIXED · 0.18.1-1.fc46 · FEDORA-2026-4c27216e39 · source

sudo dnf upgrade --advisory=FEDORA-2026-4c27216e39

RHEL 10 · grafana · NOT AFFECTED

RHEL 9 · grafana · NOT AFFECTED

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-114125?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-114125 being exploited?

CVE-2026-114125 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-114125 affect?

CVE-2026-114125 affects affected software. Severity is high (CVSS 8.6). 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 developmen

How urgent is CVE-2026-114125?

Priority 38/100. High severity

References

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