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CVE-2026-47070 HTTP/3 redirect handler leaks Authorization and Cookie headers to cross-origin redirect target in hackney

🗓️ 25 May 2026 14:00:46Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 31 Views

HTTP/3 redirect leaks Authorization and Cookie headers on cross-origin redirects in hackney.

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:handle_redirect/11"
      },
      {
        "name": "hackney_h3:do_request_with_redirect/8"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "4.0.1",
        "status": "affected",
        "version": "3.1.1",
        "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:handle_redirect/11"
      },
      {
        "name": "hackney_h3:do_request_with_redirect/8"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "c58d5b50bade146360b85caf3dc8065807b08246",
        "status": "affected",
        "version": "e61b7d04b7826847e1efe614106ef4d580c78eab",
        "versionType": "git"
      }
    ]
  }
]

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