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CVE-2026-29772

🗓️ 24 Mar 2026 18:38:02Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 6 Views🌐 WEB

Astro without 10.0.0 allowed unbounded JSON POST in Server Islands, causing memory DoS.

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Affected
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Node
astro@astrojs/nodeRange9.0.010.0.0node.js
[
  {
    "vendor": "withastro",
    "product": "astro",
    "versions": [
      {
        "version": "< 10.0.0",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
namerequest body/_server-islands/[name]Vulnerability in Astro SSR apps prior to 10.0.0 where the POST handler for /_server-islands/[name] parses the full request body as JSON without a size limit, enabling memory amplification and potential denial of service.CWE-770
bodyrequest body/_server-islands/[name]Vulnerability in Astro SSR apps prior to 10.0.0 where the POST handler for /_server-islands/[name] parses the full request body as JSON without a size limit, enabling memory amplification and potential denial of service.CWE-770

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17 Jun 2026 10:29Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.9 - 7.5
EPSS0.0037
SSVC
6