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CVE-2026-33174 Rails Active Storage has a possible DoS vulnerability when in proxy mode via Range requests

🗓️ 23 Mar 2026 23:24:55Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

DoS in Rails Active Storage proxy via large Range requests causing memory exhaustion in vulnerable versions.

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Affected
Refs
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[
  {
    "vendor": "rails",
    "product": "activestorage",
    "versions": [
      {
        "version": ">= 8.1.0.beta1, < 8.1.2.1",
        "status": "affected"
      },
      {
        "version": ">= 8.0.0.beta1, < 8.0.4.1",
        "status": "affected"
      },
      {
        "version": "< 7.2.3.1",
        "status": "affected"
      }
    ]
  }
]

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