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CVE-2026-115701 Cowboy HTTP/1.1 Unbounded Buffering of Pipelined Data During Request Handling Enables Memory Exhaustion

🗓️ 06 Nov 2026 10:29:00Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Unauthenticated remote memory exhaustion in cowboy via unbounded buffering of pipelined data.

Related
Affected
Refs
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:ninenines:cowboy:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "cowboy_http"
    ],
    "packageName": "cowboy",
    "packageURL": "pkg:hex/cowboy",
    "product": "cowboy",
    "programFiles": [
      "src/cowboy_http.erl"
    ],
    "programRoutines": [
      {
        "name": "cowboy_http:parse/2"
      },
      {
        "name": "cowboy_http:loop/1"
      }
    ],
    "repo": "https://github.com/ninenines/cowboy",
    "vendor": "ninenines",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "2.18.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:ninenines:cowboy:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "cowboy_http"
    ],
    "packageName": "ninenines/cowboy",
    "packageURL": "pkg:github/ninenines/cowboy",
    "product": "cowboy",
    "programFiles": [
      "src/cowboy_http.erl"
    ],
    "programRoutines": [
      {
        "name": "cowboy_http:parse/2"
      },
      {
        "name": "cowboy_http:loop/1"
      }
    ],
    "repo": "https://github.com/ninenines/cowboy",
    "vendor": "ninenines",
    "versions": [
      {
        "lessThan": "3a630c07e1521abf63a1b9ea080509aa1337b60d",
        "status": "affected",
        "version": "faf5594fbf74530ace90b0c46c936bdc2cf82081",
        "versionType": "git"
      }
    ]
  }
]

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