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CVE-2026-59249 Sign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connections

🗓️ 16 Jul 2026 11:39:29Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Mint's sign-tolerant HTTP/1 chunked parser enables response smuggling on pooled connections.

Related
Affected
Refs
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.Mint.HTTP1'"
    ],
    "packageName": "mint",
    "packageURL": "pkg:hex/mint",
    "product": "mint",
    "programFiles": [
      "lib/mint/http1.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Mint.HTTP1':decode_body/5"
      }
    ],
    "repo": "https://github.com/elixir-mint/mint",
    "vendor": "elixir-mint",
    "versions": [
      {
        "lessThan": "1.9.3",
        "status": "affected",
        "version": "0.1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.Mint.HTTP1'"
    ],
    "packageName": "elixir-mint/mint",
    "packageURL": "pkg:github/elixir-mint/mint",
    "product": "mint",
    "programFiles": [
      "lib/mint/http1.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Mint.HTTP1':decode_body/5"
      }
    ],
    "repo": "https://github.com/elixir-mint/mint",
    "vendor": "elixir-mint",
    "versions": [
      {
        "lessThan": "fc7d16538db7e40b56ed489f08683225cb0197fa",
        "status": "affected",
        "version": "60089586ec7adc9fddb09f69a2f5919ba9ac7f33",
        "versionType": "git"
      }
    ]
  }
]

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