Cyber Resilience

CVE-2025-55183

Vercel Next.Js 15.0.0 – 15.0.7

Public PoCHigh EPSS
Published
11 December 2025
Modified
12 December 2025
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.64 99.2th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-55183 is a medium-severity an unspecified weakness vulnerability in Vercel Next.Js. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 0.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

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…

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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.

CWE(s)
NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2025-55184Same product: Facebook React
CVE-2025-67779Same product: Facebook React
CVE-2025-55182Same product: Facebook React
CVE-2024-47831Same product: Vercel Next.Js
CVE-2025-32421Same product: Vercel Next.Js
CVE-2025-59471Same product: Vercel Next.Js
CVE-2024-46982Same product: Vercel Next.Js
CVE-2025-55173Same product: Vercel Next.Js
CVE-2023-46298Same product: Vercel Next.Js
CVE-2025-48068Same product: Vercel Next.Js

Affected Assets

facebook
react
19.0.0 — 19.0.2 · 19.1.0 — 19.1.3 · 19.2.0 — 19.2.2
vercel
next.js
15.6.0, 16.1.0 · 15.0.0 — 15.0.7 · 15.1.0 — 15.1.11 · 15.2.0 — 15.2.8

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References