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CVE-2026-27730 esm.sh has SSRF localhost/private-network bypass in `/http(s)` module route

🗓️ 25 Feb 2026 15:37:01Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Server side forgery in esm.sh fetch route bypasses localhost checks via dns alias; no patches for 137.

Related
Affected
Refs
[
  {
    "vendor": "esm-dev",
    "product": "esm.sh",
    "versions": [
      {
        "version": "<= 137",
        "status": "affected"
      }
    ]
  }
]

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