Vulnerabilities in pkg:npm/react-server-dom-parcel
PACKAGECVE-2026-44907 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting react-server-dom libraries in the npm ecosystem. The issue involves denial of service in server functions. Remediation is available by upgrading affected packages to version 19.0.8, 19.1.9, 19.2.8.
pkg:npm/react-server-dom-parcel
Vulnerability advisories affecting package pkg:npm/react-server-dom-parcel. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-wx67-qw84-cm4g | CVE-2026-44907 | HIGH | react-server-dom: Denial of Service in Server Functions |
| GHSA-rv78-f8rc-xrxh | CVE-2026-23870 | HIGH | Facebook React has a Denial of Service Vulnerability in React Server Components |
| GHSA-479c-33wc-g2pg | CVE-2026-23869 | HIGH | React Server Components have a Denial of Service Vulnerability |
| GHSA-83fc-fqcc-2hmg | CVE-2026-23864 | HIGH | React Server Components have multiple Denial of Service Vulnerabilities |
| GHSA-7gmr-mq3h-m5h9 | CVE-2025-67779 | HIGH | Denial of Service Vulnerability in React Server Components |
| GHSA-2m3v-v2m8-q956 | CVE-2025-55184 | HIGH | Denial of Service Vulnerability in React Server Components |
| GHSA-925w-6v3x-g4j4 | CVE-2025-55183 | MODERATE | Source Code Exposure Vulnerability in React Server Components |
| GHSA-fv66-9v8q-g76r | CVE-2025-55182 | CRITICAL | React Server Components are Vulnerable to RCE |
CVE-2026-44907 at a Glance
Security Impact
CVSS: 7.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
How to Fix CVE-2026-44907
To remediate this vulnerability, upgrade all affected react-server-dom dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install react-server-dom-webpack@19.0.8
npm install react-server-dom-turbopack@19.0.8
npm install react-server-dom-turbopack@19.1.9
npm install react-server-dom-parcel@19.1.9
npm install react-server-dom-webpack@19.1.9
npm install react-server-dom-turbopack@19.2.8
npm install react-server-dom-parcel@19.2.8
npm install react-server-dom-webpack@19.2.8
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls react-server-dom-webpack
How to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2026-44907, inspect your project dependencies using npm:
npm ls react-server-dom-webpack
Analyze the terminal output to locate any version of react-server-dom in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 19.0.8), your application is affected.
Note: The npm ls react-server-dom-webpack command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In react-server-dom, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-44907 Affected react-server-dom Versions
8 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
react-server-dom-webpack
|
npm |
≥ 19.0.0
< 19.0.8
|
19.0.8
|
|
react-server-dom-turbopack
|
npm |
≥ 19.0.0
< 19.0.8
|
19.0.8
|
|
react-server-dom-turbopack
|
npm |
≥ 19.1.0
< 19.1.9
|
19.1.9
|
|
react-server-dom-parcel
|
npm |
≥ 19.1.0
< 19.1.9
|
19.1.9
|
|
react-server-dom-webpack
|
npm |
≥ 19.1.0
< 19.1.9
|
19.1.9
|
|
react-server-dom-turbopack
|
npm |
≥ 19.2.0
< 19.2.8
|
19.2.8
|
|
react-server-dom-parcel
|
npm |
≥ 19.2.0
< 19.2.8
|
19.2.8
|
|
react-server-dom-webpack
|
npm |
≥ 19.2.0
< 19.2.8
|
19.2.8
|
References
Frequently Asked Questions
What is CVE-2026-44907?
Which react-server-dom versions are affected?
What version fixes CVE-2026-44907?
Is react-server-dom-webpack affected?
Is react-server-dom-turbopack affected?
What is the CVSS score of CVE-2026-44907?
What CWE is associated with CVE-2026-44907?
How can I check npm dependencies for CVE-2026-44907?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-wx67-qw84-cm4g",
"modified" : "2026-07-24T21:12:02Z",
"published" : "2026-07-24T21:12:02Z",
"aliases" : [ "CVE-2026-44907" ],
"summary" : "react-server-dom: Denial of Service in Server Functions",
"details" : "### Impact\n\nA denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage.\n\nWe recommend updating immediately.\n\nThe vulnerability exists in versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7 of:\n- react-server-dom-webpack\n- react-server-dom-parcel\n- react-server-dom-turbopack\n\n### Patches\n\nFixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8.\n\nIf you are using any of the above packages please upgrade to any of the fixed versions immediately.\n\nIf your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-webpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.0.0"
}, {
"fixed" : "19.0.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-turbopack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.0.0"
}, {
"fixed" : "19.0.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-turbopack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.1.0"
}, {
"fixed" : "19.1.9"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-parcel"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.1.0"
}, {
"fixed" : "19.1.9"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-webpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.1.0"
}, {
"fixed" : "19.1.9"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-turbopack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.2.0"
}, {
"fixed" : "19.2.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-parcel"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.2.0"
}, {
"fixed" : "19.2.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "react-server-dom-webpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "19.2.0"
}, {
"fixed" : "19.2.8"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/react/react/security/advisories/GHSA-wx67-qw84-cm4g"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44907"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/react/react"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-400", "CWE-770" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-07-24T21:12:02Z",
"nvd_published_at" : "2026-07-21T17:17:08Z"
}
}