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CVE-2026-47077 Unbounded body accumulation in HTTP/3 response loop in hackney

🗓️ 25 May 2026 14:00:42Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Unbounded HTTP/3 body growth in hackney may exhaust BEAM memory due to per-message inactivity timer.

Related
Affected
Refs
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "hackney_h3"
    ],
    "packageName": "hackney",
    "packageURL": "pkg:hex/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_h3.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_h3:await_response_loop/6"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "4.0.1",
        "status": "affected",
        "version": "2.0.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "hackney_h3"
    ],
    "packageName": "benoitc/hackney",
    "packageURL": "pkg:github/benoitc/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_h3.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_h3:await_response_loop/6"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "3d25f9fea26c90609de9d64366fedfe5065413bc",
        "status": "affected",
        "version": "0334af206d5099fdf510ed9eda18e34396f065ad",
        "versionType": "git"
      }
    ]
  }
]

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27 May 2026 15:40Current
CVSS 48.2
EPSS0.00703
33