CVE-2025-55184

HIGH EPSS 99.2%
Published Dec 11, 20256mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Dec 11, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
99.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

Affected Products 92

VendorProductVersionRange
facebookreact*≥19.0.0  –  <19.0.2
facebookreact*≥19.1.0  –  <19.1.3
facebookreact*≥19.2.0  –  <19.2.2
vercelnext.js*≥13.3.0  –  <14.2.35
vercelnext.js*≥15.0.0  –  <15.0.7
vercelnext.js*≥15.1.0  –  <15.1.11
vercelnext.js*≥15.2.0  –  <15.2.8
vercelnext.js*≥15.3.0  –  <15.3.8
vercelnext.js*≥15.4.0  –  <15.4.10
vercelnext.js*≥15.5.0  –  <15.5.9
vercelnext.js*≥16.0.0  –  <16.0.10
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
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vercelnext.js15.6.0any
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vercelnext.js15.6.0any
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vercelnext.js15.6.0any
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vercelnext.js15.6.0any
vercelnext.js15.6.0any
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vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
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vercelnext.js16.1.0any
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vercelnext.js16.1.0any
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vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any

References 3

  • github.com https://github.com/KingHacker353/CVE-2025-55184
  • react.dev https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
    Vendor Advisory
  • facebook.com https://www.facebook.com/security/advisories/cve-2025-55184
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.