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CVE-2026-47066

🗓️ 25 May 2026 14:00:39Reported by EEFType 
cve
 cve
🔗 web.nvd.nist.gov👁 10 Views

Infinite loop in hackney Alt-Svc header parser can hang CPU with a single byte header.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-47066
25 May 202614:00
attackerkb
CNNVD
Hackney 安全漏洞
25 May 202600:00
cnnvd
Cvelist
CVE-2026-47066 Infinite loop in Alt-Svc header parser in hackney
25 May 202614:00
cvelist
EUVD
EUVD-2026-31686
25 May 202614:00
euvd
NVD
CVE-2026-47066
25 May 202615:16
nvd
OSV
EEF-CVE-2026-47066 Infinite loop in Alt-Svc header parser in hackney
25 May 202614:00
osv
Positive Technologies
PT-2026-43064
25 May 202600:00
ptsecurity
RedhatCVE
CVE-2026-47066
26 May 202620:14
redhatcve
Vulnrichment
CVE-2026-47066 Infinite loop in Alt-Svc header parser in hackney
25 May 202614:00
vulnrichment
NVD
CNA
Node
benoitchackneyRange2.0.04.0.1
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "hackney_altsvc"
    ],
    "packageName": "hackney",
    "packageURL": "pkg:hex/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_altsvc.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_altsvc:parse_entries/2"
      },
      {
        "name": "hackney_altsvc:parse_entry/1"
      },
      {
        "name": "hackney_altsvc:parse_protocol/1"
      },
      {
        "name": "hackney_altsvc:parse_token/2"
      },
      {
        "name": "hackney_altsvc:skip_comma/1"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "4.0.1",
        "status": "affected",
        "version": "2.0.0-beta.1",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "hackney_altsvc"
    ],
    "packageName": "benoitc/hackney",
    "packageURL": "pkg:github/benoitc/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_altsvc.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_altsvc:parse_entries/2"
      },
      {
        "name": "hackney_altsvc:parse_entry/1"
      },
      {
        "name": "hackney_altsvc:parse_protocol/1"
      },
      {
        "name": "hackney_altsvc:parse_token/2"
      },
      {
        "name": "hackney_altsvc:skip_comma/1"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "e548aba1f97ffa3f4750da7b772998fb78c01894",
        "status": "affected",
        "version": "408e5fe20302226ea8c74dde2bcbd452d712b5b2",
        "versionType": "git"
      }
    ]
  }
]

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27 May 2026 15:40Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
CVSS 48.7
EPSS0.00049
SSVC
10