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CVE-2026-63429 HeyForm has unauthenticated /api/upload endpoint that accepts arbitrary files with no auth/session/form context

🗓️ 20 Jul 2026 15:54:22Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 13 Views

HeyForm prior to 3.0.0-rc.9 allowed anonymous uploads to /api/upload up to 10 MB with a public URL.

Related
Affected
Refs
[
  {
    "vendor": "heyform",
    "product": "heyform",
    "versions": [
      {
        "version": "< 3.0.0-rc.9",
        "status": "affected"
      }
    ]
  }
]

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