CVE-2025-55183

MEDIUM EPSS 99.1%
Published Dec 11, 20256mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Dec 11, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
99.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Affected Products 91

VendorProductVersionRange
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
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
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
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
facebookreact*≥19.0.0  –  <19.0.2
facebookreact*≥19.1.0  –  <19.1.3
facebookreact*≥19.2.0  –  <19.2.2

References 2

  • react.dev https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
    ExploitVendor Advisory
  • facebook.com https://www.facebook.com/security/advisories/cve-2025-55183
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.