Vulnerabilities in pkg:npm/@astrojs/node

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qh8j-hqjv-7m4x",
  "modified" : "2026-09-30T23:29:40Z",
  "published" : "2026-09-30T23:29:40Z",
  "aliases" : [ "CVE-2026-102984" ],
  "summary" : "Astro: Malformed port in the Host header can crash the Node adapter",
  "details" : "## Summary\n\nIn the Astro Node adapter, a request whose `Host` header contains a malformed port (for example `example.com:65536` or `example.com:8080:8080`) produced an invalid request URL. The fallback intended to recover from an unparseable URL reused the same malformed host, so it failed again and raised an uncaught `TypeError: Invalid URL` while the request was being built, before any route ran.\n\n## Impact\n\nThe effect depends on the adapter configuration:\n\n- Default configuration (`standalone`): the request returns `500 Internal Server Error` and the server continues running.\n- With the opt-in `staticHeaders: true` option: the throw reaches a synchronous HTTP handler that does not catch it, becoming an `uncaughtException` that terminates the process.\n\nThis is an availability-only issue. It does not expose data or allow code execution. Triggering it requires sending a hand-crafted `Host` header, and many proxies and CDNs reject malformed hosts before they reach the origin.\n\n## Affected versions\n\n`@astrojs/node` <= 11.1.2.\n\n## Patches\n\nFixed in `@astrojs/node` 11.1.3. When the incoming host cannot be parsed, the request URL now degrades to a host the server controls, so the request is handled instead of throwing. Hosts carrying more than a single `hostname:port` pair are also rejected during host validation.\n\n## Workarounds\n\nUpgrade to `@astrojs/node` 11.1.3 or later. Deployments that terminate malformed `Host` headers at a reverse proxy or CDN are not reachable through this path.\n\n## Credits\n\nReported by @Celggar.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@astrojs/node"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "11.1.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 11.1.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/security/advisories/GHSA-qh8j-hqjv-7m4x"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-102984"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/pull/17572"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/commit/2066f39c60707a100531b4ef4bb5dab8feafa7f2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/withastro/astro"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/releases/tag/@astrojs/node@11.1.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-248" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-30T23:29:40Z",
    "nvd_published_at" : "2026-09-30T15:22:23Z"
  }
}