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CVE-2026-47072

🗓️ 25 May 2026 14:00:47Reported by EEFType 
cve
 cve
🔗 web.nvd.nist.gov👁 91 Views🌐 WEB

CRLF injection in hackney WebSocket upgrade enables header injection and request smuggling via unsanitized host, path, headers, and protocols.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-47072
25 May 202614:00
–attackerkb
circl
Circl
CVE-2026-47072
26 Jun 202622:35
–circl
cnnvd
CNNVD
Hackney security vulnerabilities
25 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-47072 CRLF injection in WebSocket upgrade request in hackney
25 May 202614:00
–cvelist
euvd
EUVD
EUVD-2026-31690
26 Jun 202621:59
–euvd
github
Github Security Blog
Hackney has CRLF / header injection in WebSocket upgrade request
26 Jun 202621:59
–github
mend
Mend
CVE-2026-47072
25 May 202614:00
–mend
nvd
NVD
CVE-2026-47072
25 May 202615:16
–nvd
osv_cve
osv_cve
CVE-2026-47072 CRLF injection in WebSocket upgrade request in hackney
25 May 202614:00
–osv_cve
osv_eef
osv_eef
EEF-CVE-2026-47072 CRLF injection in WebSocket upgrade request in hackney
25 May 202614:00
–osv_eef
Rows per page
NVD
Vulners
CNA
Node
benoitchackneyRange2.0.0–4.0.1
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "hackney_ws"
    ],
    "packageName": "hackney",
    "packageURL": "pkg:hex/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_ws.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_ws:do_handshake/1"
      },
      {
        "name": "hackney_ws:init/1"
      }
    ],
    "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_ws"
    ],
    "packageName": "benoitc/hackney",
    "packageURL": "pkg:github/benoitc/hackney",
    "product": "hackney",
    "programFiles": [
      "src/hackney_ws.erl"
    ],
    "programRoutines": [
      {
        "name": "hackney_ws:do_handshake/1"
      },
      {
        "name": "hackney_ws:init/1"
      }
    ],
    "repo": "https://github.com/benoitc/hackney",
    "vendor": "benoitc",
    "versions": [
      {
        "lessThan": "52310ca807e7b48441ba0e9129171f535313fdd1",
        "status": "affected",
        "version": "690cecaf236fba49526da404a5bc889a24367a3e",
        "versionType": "git"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
hostheader/Improper Neutralization of CRLF Sequences in the WebSocket upgrade request. Attackers can inject arbitrary headers by providing CRLF sequences in the host, path, headers, or protocols options.CWE-93
pathheader/Improper Neutralization of CRLF Sequences in the WebSocket upgrade request. Attackers can inject arbitrary headers by providing CRLF sequences in the host, path, headers, or protocols options.CWE-93
headersheader/Improper Neutralization of CRLF Sequences in the WebSocket upgrade request. Attackers can inject arbitrary headers by providing CRLF sequences in the host, path, headers, or protocols options.CWE-93
protocolsheader/Improper Neutralization of CRLF Sequences in the WebSocket upgrade request. Attackers can inject arbitrary headers by providing CRLF sequences in the host, path, headers, or protocols options.CWE-93

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24 Jul 2026 10:10Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.17.5
CVSS 46.9
EPSS0.00542
SSVC
91