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CVE

GHSA-9qr9-h5gf-34mp

Next.js is vulnerable to RCE in React flight protocol
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CVE

GHSA-9qr9-h5gf-34mp

Next.js is vulnerable to RCE in React flight protocol

A vulnerability affects certain React packages<sup>1</sup> for versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as CVE-2025-55182. 

Fixed in:

React: 19.0.1, 19.1.2, 19.2.1

Next.js: 15.0.5, 15.1.9, 15.2.6, 15.3.6, 15.4.8, 15.5.7, 16.0.7, 15.6.0-canary.58, 16.1.0-canary.12+

The vulnerability also affects experimental canary releases starting with 14.3.0-canary.77. Users on any of the 14.3 canary builds should either downgrade to a 14.x stable release or 14.3.0-canary.76.

All users of stable 15.x or 16.x Next.js versions should upgrade to a patched, stable version immediately.

<sup>1</sup> The affected React packages are:

  • react-server-dom-parcel
  • react-server-dom-turbopack
  • react-server-dom-webpack

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r, https://github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp, https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-fmh4-wr37-44fp, https://nvd.nist.gov/vuln/detail/CVE-2025-55182, https://github.com/vercel/next.js

Severity

10

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
10
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
14.3.0-canary.77,15.1.0-canary.0,15.2.0-canary.0,15.3.0-canary.0,15.4.0-canary.0,15.5.0-canary.0,16.0.0-canary.0
Fix Available
15.0.5,15.1.9,15.2.6,15.3.6,15.4.8,15.5.7,16.0.7

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