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CVE-2026-89044 Netty 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final HTTP Request Smuggling via Transfer-Encoding

🗓️ 10 Sep 2026 17:39:34Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 57 Views

Netty 4.1.133-4.2.17 HTTP request smuggling via Transfer-Encoding validation bypass.

Related
Affected
Refs
[
  {
    "vendor": "netty",
    "product": "netty",
    "collectionURL": "https://repo1.maven.org/maven2/io/netty/netty-codec-http/",
    "repo": "https://github.com/netty/netty",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:maven/io.netty/netty-codec-http",
    "versions": [
      {
        "version": "4.1.133.Final",
        "lessThan": "4.1.138.Final",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "4.2.13.Final",
        "lessThan": "4.2.18.Final",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]

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10 Sep 2026 17:39Current
CVSS 3.16.5
CVSS 46.9
EPSS0.00284
SSVC
57