Unrated

DEBIAN-CVE-2026-19203

Type: advisorySource: OSV1 source record

A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling. This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.

Announced 8 Sept 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-19203

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-19203

jetty12

Source reference: /affected/0/package/name

Affected versions: 12.0.17-3
Source reference: /affected/0/versions
12.0.17-3.1
Source reference: /affected/0/versions
12.0.17-3.1~deb13u1
Source reference: /affected/0/versions
12.0.32-1
Source reference: /affected/0/versions
12.0.32-2
Source reference: /affected/0/versions
12.0.33-1
Source reference: /affected/0/versions
12.0.39-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty12

Source reference: /affected/1/package/name

Affected versions: 12.0.17-3
Source reference: /affected/1/versions
12.0.17-3.1
Source reference: /affected/1/versions
12.0.17-3.1~deb13u1
Source reference: /affected/1/versions
12.0.32-1
Source reference: /affected/1/versions
12.0.32-2
Source reference: /affected/1/versions
12.0.33-1
Source reference: /affected/1/versions
12.0.39-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/2/package/name

Affected versions: 9.4.50-4
Source reference: /affected/2/versions
9.4.50-4+deb12u1
Source reference: /affected/2/versions
9.4.50-4+deb12u2
Source reference: /affected/2/versions
9.4.50-4+deb12u3
Source reference: /affected/2/versions
9.4.51-1
Source reference: /affected/2/versions
9.4.51-2
Source reference: /affected/2/versions
9.4.52-1
Source reference: /affected/2/versions
9.4.53-1
Source reference: /affected/2/versions
9.4.54-1
Source reference: /affected/2/versions
9.4.55-1
Source reference: /affected/2/versions
9.4.56-1
Source reference: /affected/2/versions
9.4.57-0+deb12u1
Source reference: /affected/2/versions
9.4.57-1
Source reference: /affected/2/versions
9.4.57-1.1
Source reference: /affected/2/versions
9.4.57-1.1~deb12u1
Source reference: /affected/2/versions
9.4.57-1.1~deb13u1
Source reference: /affected/2/versions
9.4.58-1
Source reference: /affected/2/versions
9.4.58-2
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/3/package/name

Affected versions: 9.4.57-1
Source reference: /affected/3/versions
9.4.57-1.1
Source reference: /affected/3/versions
9.4.57-1.1~deb12u1
Source reference: /affected/3/versions
9.4.57-1.1~deb13u1
Source reference: /affected/3/versions
9.4.58-1
Source reference: /affected/3/versions
9.4.58-2
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jetty9

Source reference: /affected/4/package/name

Affected versions: 9.4.57-1
Source reference: /affected/4/versions
9.4.57-1.1
Source reference: /affected/4/versions
9.4.57-1.1~deb12u1
Source reference: /affected/4/versions
9.4.57-1.1~deb13u1
Source reference: /affected/4/versions
9.4.58-1
Source reference: /affected/4/versions
9.4.58-2
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty12",
      "purl": "pkg:deb/debian/jetty12?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "12.0.17-3",
      "12.0.17-3.1",
      "12.0.17-3.1~deb13u1",
      "12.0.32-1",
      "12.0.32-2",
      "12.0.33-1",
      "12.0.39-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19203.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty12",
      "purl": "pkg:deb/debian/jetty12?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "12.0.17-3",
      "12.0.17-3.1",
      "12.0.17-3.1~deb13u1",
      "12.0.32-1",
      "12.0.32-2",
      "12.0.33-1",
      "12.0.39-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19203.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "9.4.50-4",
      "9.4.50-4+deb12u1",
      "9.4.50-4+deb12u2",
      "9.4.50-4+deb12u3",
      "9.4.51-1",
      "9.4.51-2",
      "9.4.52-1",
      "9.4.53-1",
      "9.4.54-1",
      "9.4.55-1",
      "9.4.56-1",
      "9.4.57-0+deb12u1",
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19203.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19203.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jetty9",
      "purl": "pkg:deb/debian/jetty9?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "9.4.57-1",
      "9.4.57-1.1",
      "9.4.57-1.1~deb12u1",
      "9.4.57-1.1~deb13u1",
      "9.4.58-1",
      "9.4.58-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19203.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #56184 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 16:28:34 GMT
Publisher date: Tue, 08 Sep 2026 13:17:18 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-19203 · Revision 1Source updated