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GHSA-VCVR-R3JV-PC5J

Vulnerability from github – Published: 2026-09-30 14:48 – Updated: 2026-09-30 14:48

Summary

Next.js: Remote Code Execution in next/og ImageResponse

Details

Impact

The Node.js ImageResponse implementation from next/og is affected by an upstream vulnerability. This can lead to remote code execution.

Affected applications pass attacker-controlled values into SVG content, attributes, or styles during image generation:

import { ImageResponse } from 'next/og'

export async function GET(request: Request) {
  const value = new URL(request.url).searchParams.get('value') ?? ''

  return new ImageResponse(
    <svg width="1200" height="630">
      <title>{value}</title>
    </svg>
  )
}

Applications using the Edge ImageResponse implementation, or applications that do not pass attacker-controlled values into SVG content, attributes, or styles, are not affected.

Workaround

If upgrading is not immediately possible, do not pass attacker-controlled values into SVG content, attributes, or styles rendered by the Node.js ImageResponse implementation from next/og.

Severity

9.5 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "16.2.0"
            },
            {
              "fixed": "16.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1395"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-30T14:48:30Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "## Impact\n\nThe Node.js `ImageResponse` implementation from `next/og` is affected by an upstream vulnerability. This can lead to remote code execution.\n\nAffected applications pass attacker-controlled values into SVG content, attributes, or styles during image generation:\n\n```tsx\nimport { ImageResponse } from \u0027next/og\u0027\n\nexport async function GET(request: Request) {\n  const value = new URL(request.url).searchParams.get(\u0027value\u0027) ?? \u0027\u0027\n\n  return new ImageResponse(\n    \u003csvg width=\"1200\" height=\"630\"\u003e\n      \u003ctitle\u003e{value}\u003c/title\u003e\n    \u003c/svg\u003e\n  )\n}\n```\n\nApplications using the Edge `ImageResponse` implementation, or applications that do not pass attacker-controlled values into SVG content, attributes, or styles, are not affected.\n\n## Workaround\n\nIf upgrading is not immediately possible, do not pass attacker-controlled values into SVG content, attributes, or styles rendered by the Node.js `ImageResponse` implementation from `next/og`.",
  "id": "GHSA-vcvr-r3jv-pc5j",
  "modified": "2026-09-30T14:48:30Z",
  "published": "2026-09-30T14:48:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5j"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vercel/next.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/releases/tag/v16.3.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Next.js: Remote Code Execution in next/og ImageResponse"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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