Meta react-server-dom-webpack up to 19.0.1/19.1.2/19.2.1 React Server deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Meta react-server-dom-webpack, react-server-dom-turbopack and react-server-dom-parcel up to 19.0.1/19.1.2/19.2.1. This affects an unknown part of the component React Server Component. Executing a manipulation can lead to deserialization. This vulnerability is handled as CVE-2025-55184. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Meta react-server-dom-webpack, react-server-dom-turbopack and react-server-dom-parcel up to 19.0.1/19.1.2/19.2.1. It has been declared as problematic. This vulnerability affects an unknown function of the component React Server Component. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect availability. CVE summarizes:

A pre-authentication denial of service vulnerability exists in 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. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

The advisory is available at facebook.com. This vulnerability was named CVE-2025-55184 since 08/08/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/15/2025).

The vulnerability scanner Nessus provides a plugin with the ID 278531 (Node.js React Server Components Denial of Service and Source Code Exposure (CVE-2025-55183, CVE-2025-55184)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (278531), EUVD (EUVD-2025-202877) and CERT Bund (WID-SEC-2025-2835). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Vercel Next.js
  • Open Source React

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Meta): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 278531
Nessus Name: Node.js React Server Components Denial of Service and Source Code Exposure (CVE-2025-55183, CVE-2025-55184)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/08/2025 CVE reserved
12/11/2025 +125 days VulDB entry created
12/12/2025 +0 days Advisory disclosed
12/15/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: facebook.com
Status: Confirmed

CVE: CVE-2025-55184 (🔒)
GCVE (CVE): GCVE-0-2025-55184
GCVE (VulDB): GCVE-100-335986
EUVD: 🔒
CERT Bund: WID-SEC-2025-2835 - Vercel Next.js und React Server Components: Mehrere Schwachstellen

Entryinfo

Created: 12/12/2025 00:08
Updated: 12/15/2025 19:30
Changes: 12/12/2025 00:08 (62), 12/12/2025 15:11 (7), 12/13/2025 17:17 (2), 12/15/2025 19:30 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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