FKIE_CVE-2026-73424

Vulnerability from fkie_nvd - Published: 2026-08-17 18:18 - Updated: 2026-08-18 15:17
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/withastro/astro/commit/3a43cf0f3690a8e33cb30109bc5165611cf38fcd
security-advisories@github.comhttps://github.com/withastro/astro/pull/17370
security-advisories@github.comhttps://github.com/withastro/astro/releases/tag/@astrojs/vercel@11.0.3
security-advisories@github.comhttps://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "astro",
          "vendor": "withastro",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 10.0.3, \u003c 11.0.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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",
  "lastModified": "2026-08-18T15:17:07.910",
  "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-73424",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-18T14:48:58.804991Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-17T18:18:13.873",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/withastro/astro/commit/3a43cf0f3690a8e33cb30109bc5165611cf38fcd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/withastro/astro/pull/17370"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/withastro/astro/releases/tag/@astrojs/vercel@11.0.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-441"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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