FKIE_CVE-2026-33768

Vulnerability from fkie_nvd - Published: 2026-03-24 19:16 - Updated: 2026-03-26 13:37
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirely. The override preserves the original HTTP method and body, so this isn't limited to GET. POST, PUT, DELETE all land on the rewritten path. A Firewall rule blocking /admin/* does nothing when the request comes in as POST /api/health?x_astro_path=/admin/delete-user. This issue has been patched in version 10.0.2.
References
security-advisories@github.comhttps://github.com/withastro/astro/commit/335a204161f5a7293c128db570901d4f8639c6edPatch
security-advisories@github.comhttps://github.com/withastro/astro/pull/15959Issue Tracking
security-advisories@github.comhttps://github.com/withastro/astro/releases/tag/%40astrojs%2Fvercel%4010.0.2Release Notes
security-advisories@github.comhttps://github.com/withastro/astro/security/advisories/GHSA-mr6q-rp88-fx84Exploit, Vendor Advisory
Impacted products
Vendor Product Version
astro \@astrojs\/vercel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:astro:\\@astrojs\\/vercel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E77DAFA1-7306-47B7-9524-EBF8F8EE4CDA",
              "versionEndExcluding": "10.0.2",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel\u0027s platform-level path restrictions entirely. The override preserves the original HTTP method and body, so this isn\u0027t limited to GET. POST, PUT, DELETE all land on the rewritten path. A Firewall rule blocking /admin/* does nothing when the request comes in as POST /api/health?x_astro_path=/admin/delete-user. This issue has been patched in version 10.0.2."
    },
    {
      "lang": "es",
      "value": "Astro es un web framework. Antes de la versi\u00f3n 10.0.2, el punto de entrada sin servidor @astrojs/vercel lee la cabecera x-astro-path y el par\u00e1metro de consulta x_astro_path para reescribir la ruta de solicitud interna, sin autenticaci\u00f3n alguna. En despliegues sin Edge Middleware, esto permite a cualquiera eludir por completo las restricciones de ruta a nivel de plataforma de Vercel. La anulaci\u00f3n preserva el m\u00e9todo HTTP y el cuerpo originales, por lo que esto no se limita a GET. POST, PUT, DELETE todos aterrizan en la ruta reescrita. Una regla de cortafuegos que bloquea /admin/* no hace nada cuando la solicitud llega como POST /api/health?x_astro_path=/admin/delete-user. Este problema ha sido parcheado en la versi\u00f3n 10.0.2."
    }
  ],
  "id": "CVE-2026-33768",
  "lastModified": "2026-03-26T13:37:30.467",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
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        "impactScore": 2.5,
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        "type": "Secondary"
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      {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.1,
          "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:N",
          "version": "3.1"
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        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-03-24T19:16:55.653",
  "references": [
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      "source": "security-advisories@github.com",
      "tags": [
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      "source": "security-advisories@github.com",
      "tags": [
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      "url": "https://github.com/withastro/astro/security/advisories/GHSA-mr6q-rp88-fx84"
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-441"
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        {
          "lang": "en",
          "value": "CWE-862"
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      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
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}


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