CVE-2025-551835.3MediumCWE-502

CVE-2025-55183: Meta react-server-dom-webpack vulnerability

Meta · react-server-dom-webpack

Affected: Meta react-server-dom-webpack · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

61.9%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

5.3MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products3

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Meta · react-server-dom-webpackfrom 19.0.0 up to and including 19.0.1; from 19.1.0 up to and including 19.1.2; from 19.2.0 up to and including 19.2.1
Meta · react-server-dom-turbopackfrom 19.0.0 up to and including 19.0.1; from 19.1.0 up to and including 19.1.2; from 19.2.0 up to and including 19.2.1
Meta · react-server-dom-parcelfrom 19.0.0 up to and including 19.0.1; from 19.1.0 up to and including 19.1.2; from 19.2.0 up to and including 19.2.1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Deserialization of Untrusted Data · Deserialization and Object Injection
Vendor: Meta
Published: December 2025
Band: Likely to be exploited (10% or more), December 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-55183 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.