The vulnerability of the requireModule() function in the React framework-based JavaScript libraries react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack, which are used for building custom user interfaces, allows a hacker to execute arbitrary code.

🗓️ 04 Dec 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec

bdu_fstec🔗 bdu.fstec.ru👁 6 Views

Deserialization flaw in requireModule() of React server libraries enables arbitrary code execution via crafted requests.

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Vulners

Node

OR

meta_platforms react-server-dom-webpackRange<19.0.1

meta_platforms react-server-dom-webpackRange<19.1.2

meta_platforms react-server-dom-webpackRange<19.2.1

meta_platforms react-server-dom-parcelRange<19.0.1

meta_platforms react-server-dom-parcelRange<19.1.2

meta_platforms react-server-dom-parcelRange<19.2.1

meta_platforms react-server-dom-turbopackRange<19.0.1

meta_platforms react-server-dom-turbopackRange<19.1.2

meta_platforms react-server-dom-turbopackRange<19.2.1

vercel next.jsRange<15.0.5

vercel next.jsRange<15.1.9

vercel next.jsRange<15.2.6

vercel next.jsRange<15.3.6

vercel next.jsRange<15.4.8

vercel next.jsRange<15.5.7

vercel next.jsRange<16.0.7

vercel next.jsRange≤14.3.0-canary.77

redwoodjs_core redwood_sdkRange<1.0.0-alpha.0

Source	Link
react	www.react.dev/versions
react	www.react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
nextjs	www.nextjs.org/blog/CVE-2025-66478
github	www.github.com/Ashwesker/Blackash-CVE-2025-55182
github	www.github.com/fatguru/CVE-2025-55182-scanner
github	www.github.com/sickwell/CVE-2025-55182
github	www.github.com/ejpir/CVE-2025-55182-poc
cisa	www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv
bleepingcomputer	www.bleepingcomputer.com/news/security/hackers-exploit-react2shell-in-automated-credential-theft-campaign/
web	www.web.nvd.nist.gov/view/vuln/detail

06 May 2026 00:00Current

7.5High risk

Vulners AI Score7.5

CVSS 210

CVSS 310

EPSS0.99616

RequireModule vulnerability React server libraries Arbitrary code execution Crafted requests