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CVE-2025-55183

Published: Dec 11, 2025Updated: Dec 12, 2025 Sources: CVE List NVD GHSANVD-CWE-noinfo
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
62.4%
Top 0.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

NVD-CWE-noinfo

Affected Products

reactfacebookCommunications
next.jsvercel
LibraryLibrary
OSS Libraries / web-framework
react-server-dom-webpackMeta
Library
OSS Libraries / web-framework
react-server-dom-turbopackMeta
Library
OSS Libraries / web-framework
react-server-dom-parcelMeta
Library
OSS Libraries / web-framework
facebookcommercialUSCommunicationsaka meta, facebook inc.
vercelcommercialUSOSS Librariesaka vercel
metacommercialUSOSS Librariesaka react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack
and 3 more affected products View all →

Exploitability

Official Patch Available

References

https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
react.dev
https://www.facebook.com/security/advisories/cve-2025-55183
facebook.com
https://github.com/facebook/react/security/advisories/GHSA-925w-6v3x-g4j4
github.com
and 2 more references View all →

Timeline

Published
Dec 11, 2025
Last Updated
Dec 12, 2025

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