CVE-2025-55182 (GCVE-0-2025-55182)

Vulnerability from cvelistv5 – Published: 2025-12-03 15:40 – Updated: 2025-12-11 20:15
VLAI? CISA
Summary
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.
Severity ?
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • Deserialization of Untrusted Data (CWE-502)
Assigner
References
Impacted products
Vendor Product Version
Meta react-server-dom-webpack Affected: 19.0.0 , ≤ 19.0.0 (semver)
Affected: 19.1.0 , ≤ 19.1.1 (semver)
Affected: 19.2.0 , ≤ 19.2.0 (semver)
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    Meta react-server-dom-turbopack Affected: 19.0.0 , ≤ 19.0.0 (semver)
Affected: 19.1.0 , ≤ 19.1.1 (semver)
Affected: 19.2.0 , ≤ 19.2.0 (semver)
Create a notification for this product.
    Meta react-server-dom-parcel Affected: 19.0.0 , ≤ 19.0.0 (semver)
Affected: 19.1.0 , ≤ 19.1.1 (semver)
Affected: 19.2.0 , ≤ 19.2.0 (semver)
Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2025-12-05

Due date: 2025-12-12

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.

Used in ransomware: Known

Notes: Check for signs of potential compromise on all internet accessible REACT instances after applying mitigations. For more information, please see: https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components ; https://github.com/vercel-labs/fix-react2shell-next?tab=readme-ov-file ; https://nvd.nist.gov/vuln/detail/CVE-2025-55182

Show details on NVD website
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.