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react-server-dom-webpack

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

Open advisories

8 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 7.5npmAmendedPublished

    react-server-dom: Denial of Service in Server Functions

    CVE-2026-44907 · GHSA-wx67-qw84-cm4g

    Affected
    • npm react-server-dom-webpack >= 19.0.0, < 19.0.8; >= 19.1.0, < 19.1.9; >= 19.2.0, < 19.2.8
    Fixed in
    19.2.819.0.819.1.9· Vendor fix available
    Issue
    Impact A 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. We recommend updating immediately. The 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: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack Patches Fixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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.

    Recommended action: Upgrade to 19.2.8, 19.1.9 or 19.0.8 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  2. High, CVSS 7.5npmAmendedPublished

    Facebook React has a Denial of Service Vulnerability in React Server Components

    CVE-2026-23870 · GHSA-rv78-f8rc-xrxh

    Affected
    • npm react-server-dom-webpack >= 19.0.0, < 19.0.6; >= 19.1.0, < 19.1.7; >= 19.2.0, < 19.2.6
    Fixed in
    19.1.719.2.619.0.6· Vendor fix available
    Issue
    Impact A 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. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5 of: react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack Patches Fixes were back ported to versions 19.0.6, 19.1.7, and 19.2.6. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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. References See the blog post for more information and upgrade instructions.

    Recommended action: Upgrade to 19.2.6, 19.1.7 or 19.0.6 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  3. High, CVSS 7.5npmAmendedPublished

    React Server Components have a Denial of Service Vulnerability

    CVE-2026-23869 · GHSA-479c-33wc-g2pg

    Affected
    • npm react-server-dom-webpack >= 19.0.0, < 19.0.5; >= 19.1.0, < 19.1.6; >= 19.2.0, < 19.2.5
    Fixed in
    19.2.519.1.619.0.5· Vendor fix available
    Issue
    Impact A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack versions 19.0.0, 19.1.0 and 19.2.0. The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints. The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4 of: react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack Patches Fixes were back ported to versions 19.0.5, 19.1.6, and 19.2.5. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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…

    Recommended action: Upgrade to 19.2.5, 19.1.6 or 19.0.5 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  4. High, CVSS 7.5npmAmendedPublished

    React Server Components have multiple Denial of Service Vulnerabilities

    CVE-2026-23864 · GHSA-83fc-fqcc-2hmg

    Affected
    • npm react-server-dom-webpack >= 19.2.0-canary-63779030-20250328, < 19.2.4; >= 19.1.0-canary-7130d0c6-20241212, < 19.1.5; >= 19.0.0, < 19.0.4
    Fixed in
    19.0.419.1.519.2.4· Vendor fix available
    Issue
    Impact It was found that the fixes to address DoS in React Server Components were incomplete and we found multiple denial of service vulnerabilities still exist in React Server Components. We recommend updating immediately. The vulnerability exists in versions 19.0.0, 19.0.1, 19.0.2, 19.0.3, 19.1.0, 19.1.1, 19.1.2, 19.1.3, 19.1.4, 19.2.0, 19.2.1, 19.2.2, 19.2.3 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Patches Fixes were back ported to versions 19.0.4, 19.1.5, and 19.2.4. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this…

    Recommended action: Upgrade to 19.2.4, 19.1.5 or 19.0.4 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  5. High, CVSS 7.5npmAmendedPublished

    Denial of Service Vulnerability in React Server Components

    CVE-2025-67779 · GHSA-7gmr-mq3h-m5h9

    Affected
    • npm react-server-dom-webpack >= 19.0.2, < 19.0.3; >= 19.1.3, < 19.1.4; >= 19.2.2, < 19.2.3
    Fixed in
    19.2.319.1.419.0.3· Vendor fix available
    Issue
    Impact It was found that the fix to address CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. We recommend updating immediately. The vulnerability exists in versions 19.0.2, 19.1.3, and 19.2.2 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack These issues are present in the patches published on December 11th, 2025. Patches Fixes were back ported to versions 19.0.3, 19.1.4, and 19.2.3. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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. References See the blog post for more information and upgrade instructions.

    Recommended action: Upgrade to 19.2.3, 19.1.4 or 19.0.3 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  6. High, CVSS 7.5npmAmendedPublished

    Denial of Service Vulnerability in React Server Components

    CVE-2025-55184 · GHSA-2m3v-v2m8-q956

    Affected
    • npm react-server-dom-webpack >= 19.0.0, < 19.0.2; >= 19.1.0, < 19.1.3; >= 19.2.0, < 19.2.2
    Fixed in
    19.0.219.2.219.1.3· Vendor fix available
    Issue
    Impact There is a denial of service vulnerability in React Server Components. React recommends updating immediately. The vulnerability exists in versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack These issues are present in the patches published last week. Patches Fixes were back ported to versions 19.0.2, 19.1.3, and 19.2.2. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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. References See the blog post for more information and upgrade instructions.

    Recommended action: Upgrade to 19.2.2, 19.1.3 or 19.0.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  7. Medium, CVSS 5.3npmAmendedPublished

    Source Code Exposure Vulnerability in React Server Components

    CVE-2025-55183 · GHSA-925w-6v3x-g4j4

    Affected
    • npm react-server-dom-webpack >= 19.0.0, < 19.0.2; >= 19.1.0, < 19.1.3; >= 19.2.0, < 19.2.2
    Fixed in
    19.0.219.2.219.1.3· Vendor fix available
    Issue
    Impact There is a source code exposure vulnerability in React Server Components. React recommends updating immediately. The vulnerability exists in versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack These issues are present in the patches published last week. Patches Fixes were back ported to versions 19.0.2, 19.1.3, and 19.2.2. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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. References See the blog post for more information and upgrade instructions.

    Recommended action: Upgrade to 19.2.2, 19.1.3 or 19.0.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  8. Critical, CVSS 10.0Exploited · CISA KEVnpmAmendedPublished

    React Server Components are Vulnerable to RCE

    CVE-2025-55182 · GHSA-fv66-9v8q-g76r

    Affected
    • npm react-server-dom-webpack >= 19.1.0, < 19.1.2; >= 19.2.0, <= 19.2.0; >= 19.0.0, <= 19.0.0
    Fixed in
    19.1.219.0.119.2.1· Vendor fix available
    Issue
    Impact There is an unauthenticated remote code execution vulnerability in React Server Components. We recommend upgrading immediately. The vulnerability is present in versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 of: react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack Patches A fix was introduced in versions 19.0.1, 19.1.2, and 19.2.1. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If 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. References See the blog post for more information and upgrade instructions.

    Recommended action: Upgrade to 19.2.1, 19.1.2 or 19.0.1 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:react.dev (1)cisa.gov (2)osv.dev (3)github.com (4)Source checked Evidence →