GHSA-2464-FHR4-W9XW

Vulnerability from github – Published: 2026-10-22 15:52 – Updated: 2026-10-22 15:52
VLAI
Summary
Next.js: Unauthenticated Remote Code Execution in Image Optimization API when SVG files are used
Details

Impact

A memory-related vulnerability has been discovered in an upstream library used for Image Optimization can lead to possible remote code execution (RCE) when Next.js runs on glibc-based Linux.

Workaround

Ensure the version of sharp used by Next.js is greater than or equal to 0.35.5. Fresh installs automatically get a fixed version of sharp. Upgrading Next.js to the patched versions will ensure package managers automatically provide a fixed version of sharp to Next.js.

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
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 15.5.27"
      },
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "15.5.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 16.4.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "16.0.0"
            },
            {
              "fixed": "16.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1395"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-22T15:52:53Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "## Impact\n\nA memory-related vulnerability has been discovered in an upstream library used for Image Optimization can lead to possible remote code execution (RCE) when Next.js runs on glibc-based Linux.\n\n## Workaround\n\nEnsure the version of `sharp` used by Next.js is greater than or equal to `0.35.5`. Fresh installs automatically get a fixed version of `sharp`.\nUpgrading Next.js to the patched versions will ensure package managers automatically provide a fixed version of `sharp` to Next.js.",
  "id": "GHSA-2464-fhr4-w9xw",
  "modified": "2026-10-22T15:52:53Z",
  "published": "2026-10-22T15:52:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-2464-fhr4-w9xw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96889"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/commit/5e3b687b5edb868b064bdc058d768a7021e7f6ad"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/commit/9571ec899f063df6533351bec390ccb2cc0af6a3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vercel/next.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/releases/tag/v15.5.28"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/releases/tag/v16.4.1"
    }
  ],
  "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: Unauthenticated Remote Code Execution in Image Optimization API when SVG files are used"
}



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