CVE-2025-55182 (GCVE-0-2025-55182)
Vulnerability from cvelistv5
Published
2025-12-03 15:40
Modified
2026-02-26 16:57
Severity ?
10.0 (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)
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.
References
Impacted products
Vendor Product Version
Meta react-server-dom-webpack Version: 19.0.0   ≤ 19.0.0
Version: 19.1.0   ≤ 19.1.1
Version: 19.2.0   ≤ 19.2.0
 Create a notification for this product.
   Meta react-server-dom-turbopack Version: 19.0.0   ≤ 19.0.0
Version: 19.1.0   ≤ 19.1.1
Version: 19.2.0   ≤ 19.2.0
 Create a notification for this product.
   Meta react-server-dom-parcel Version: 19.0.0   ≤ 19.0.0
Version: 19.1.0   ≤ 19.1.1
Version: 19.2.0   ≤ 19.2.0
 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

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-55182",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-06T04:55:43.783137Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2025-12-05",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T16:57:36.794Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "media-coverage"
            ],
            "url": "https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2025-12-05T00:00:00.000Z",
            "value": "CVE-2025-55182 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-12-04T17:32:12.884Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/12/03/4"
          },
          {
            "url": "https://news.ycombinator.com/item?id=46136026"
          }
        ],
        "title": "CVE Program Container",
        "x_generator": {
          "engine": "ADPogram 0.0.1"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-webpack",
          "vendor": "Meta",
          "versions": [
            {
              "lessThanOrEqual": "19.0.0",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.1.1",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.2.0",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-turbopack",
          "vendor": "Meta",
          "versions": [
            {
              "lessThanOrEqual": "19.0.0",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.1.1",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.2.0",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-parcel",
          "vendor": "Meta",
          "versions": [
            {
              "lessThanOrEqual": "19.0.0",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.1.1",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "19.2.0",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "dateAssigned": "2025-12-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Deserialization of Untrusted Data (CWE-502)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-11T20:15:37.699Z",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "Meta"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.facebook.com/security/advisories/cve-2025-55182"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "Meta",
    "cveId": "CVE-2025-55182",
    "datePublished": "2025-12-03T15:40:56.894Z",
    "dateReserved": "2025-08-08T18:21:47.119Z",
    "dateUpdated": "2026-02-26T16:57:36.794Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2025-55182",
      "dateAdded": "2025-12-05",
      "dueDate": "2025-12-12",
      "knownRansomwareCampaignUse": "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",
      "product": "React Server Components",
      "requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
      "shortDescription": "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.",
      "vendorProject": "Meta",
      "vulnerabilityName": "Meta React Server Components Remote Code Execution Vulnerability"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.