csirt@kutim:~/threat-intel/cve/CVE-2026-27148

Katalog CVE

CVSS 9.6 · Critical EPSS 0,61%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada storybook. Skor CVSS 3.1 9.6 (Critical) menurut NVD.

Deskripsi (NVD)

Storybook is a frontend workshop for building user interface components and pages in isolation. Prior to versions 7.6.23, 8.6.17, 9.1.19, and 10.2.10, the WebSocket functionality in Storybook's dev server, used to create and update stories, is vulnerable to WebSocket hijacking. This vulnerability only affects the Storybook dev server; production builds are not impacted. Exploitation requires a developer to visit a malicious website while their local Storybook dev server is running. Because the WebSocket connection does not validate the origin of incoming connections, a malicious site can silently send WebSocket messages to the local instance without any further user interaction. If the Storybook dev server is intentionally exposed publicly (e.g. for design reviews or stakeholder demos) the risk is higher, as no malicious site visit is required. Any unauthenticated attacker can send WebSocket messages to it directly. The vulnerability affects the WebSocket message handlers for creating and saving stories. Both are vulnerable to injection via unsanitized input in the componentFilePath field, which can be exploited to achieve persistent XSS or Remote Code Execution (RCE). Versions 7.6.23, 8.6.17, 9.1.19, and 10.2.10 contain a fix for the issue.

Rincian

Terbit di NVD
25 Februari 2026
Terakhir diubah
15 Juli 2026
Status NVD
Modified
CVSS 3.1
9.6 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-346: Origin Validation Error
EPSS (30 hari)
0,61% peluang dieksploitasi; lebih tinggi dari 47,5% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
storybook storybook Semua versi sebelum 7.6.23
storybook storybook Versi 8.1.0 hingga sebelum 8.6.17
storybook storybook Versi 9.0.0 hingga sebelum 9.1.19
storybook storybook Versi 10.0.0 hingga sebelum 10.2.10

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.