{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "10.0.3"
              },
              {
                "fixed": "11.0.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "4a6ff2a40f5aaa844afc5ac2710b129e1d6ca7d5"
            },
            {
              "fixed": "3a43cf0f3690a8e33cb30109bc5165611cf38fcd"
            }
          ],
          "repo": "https://github.com/withastro/astro",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-x27w-589x-frm2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-441",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73424.json"
  },
  "details": "Astro is a web framework for content-driven websites. From 10.0.3 until 11.0.3, the Astro Vercel adapter in packages/integrations/vercel/src/serverless/entrypoint.ts accepts x_astro_path for the public /_isr function based only on the x-vercel-isr header, allowing unauthenticated GET requests to render routes protected only by Vercel edge path rules or split edge middleware. This issue is fixed in 11.0.3.",
  "id": "CVE-2026-73424",
  "modified": "2026-08-20T03:30:11.610623070Z",
  "published": "2026-08-17T17:11:59.782Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/withastro/astro/releases/tag/@astrojs/vercel@11.0.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73424.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73424"
    },
    {
      "type": "FIX",
      "url": "https://github.com/withastro/astro/commit/3a43cf0f3690a8e33cb30109bc5165611cf38fcd"
    },
    {
      "type": "FIX",
      "url": "https://github.com/withastro/astro/pull/17370"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Astro: Unauthenticated path override in the @astrojs/vercel ISR function"
}