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Findings

CVE-2025-55182

Meta React Server Components Remote Code Execution Vulnerability

Published Dec 3, 2025 · updated Oct 8, 2026 · Meta React Server Components

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 3, 2025 · Catalog

    Detected

    A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

  2. Dec 5, 2025 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Dec 12, 2025 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Oct 8, 2026 · Catalog

    Updated

    A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date Dec 12, 2025

Affected

  • cpe facebook/react19.0.0
  • cpe facebook/react19.1.0
  • cpe facebook/react19.1.1
  • cpe facebook/react19.2.0
  • cpe vercel/next.jsversion unspecified
  • vendor Meta React Server Componentsversion unspecified

Sources

  • CISA KEVCVE-2025-55182

    Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints. Please note CVE-2025-66478 has been rejected, but it is associated with CVE-2025- 55182.

    cisa.gov
  • CVE.orgCVE-2025-55182

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2025-55182

    30-day exploitation probability 99.8%

    first.org
  • Exploit Database52506

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit Modulesexploit_multi/http/react2shell_unauth_rce_cve_2025_55182

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-2025-55182

    A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely

    nvd.nist.gov

References

CVE-2025-55182 · ZeroDay Findings