UnratedFix available

DEBIAN-CVE-2026-54399

Type: advisorySource: OSV1 source record

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length

Announced 1 Jul 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-54399

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-2026-54399

httpcomponents-core

Source reference: /affected/0/package/name

Affected versions: 4.4.16-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

httpcomponents-core

Source reference: /affected/1/package/name

Affected versions: 4.4.16-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

httpcomponents-core

Source reference: /affected/2/package/name

Affected versions: 4.4.16-1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

httpcomponents-core5

Source reference: /affected/3/package/name

Affected versions: 5.2.1-1
Source reference: /affected/3/versions
5.2.2-1
Source reference: /affected/3/versions
5.2.2-2
Source reference: /affected/3/versions
5.4-1
Source reference: /affected/3/versions
5.4.2-1
Source reference: /affected/3/versions
5.4.2-1.1
Source reference: /affected/3/versions
5.4.2-2
Source reference: /affected/3/versions
5.4.3-1
Source reference: /affected/3/versions
5.4.4-1
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

httpcomponents-core5

Source reference: /affected/4/package/name

Affected versions: 5.2.2-1
Source reference: /affected/4/versions
5.2.2-2
Source reference: /affected/4/versions
5.4-1
Source reference: /affected/4/versions
5.4.2-1
Source reference: /affected/4/versions
5.4.2-1.1
Source reference: /affected/4/versions
5.4.2-2
Source reference: /affected/4/versions
5.4.3-1
Source reference: /affected/4/versions
5.4.4-1
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

httpcomponents-core5

Source reference: /affected/5/package/name

Affected versions: 5.2.2-1
Source reference: /affected/5/versions
5.2.2-2
Source reference: /affected/5/versions
5.4-1
Source reference: /affected/5/versions
5.4.2-1
Source reference: /affected/5/versions
5.4.2-1.1
Source reference: /affected/5/versions
5.4.2-2
Source reference: /affected/5/versions
Fixed versions: 5.4.3-1
Source reference: /affected/5/ranges
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": "httpcomponents-core",
      "purl": "pkg:deb/debian/httpcomponents-core?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "4.4.16-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "httpcomponents-core",
      "purl": "pkg:deb/debian/httpcomponents-core?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "4.4.16-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "httpcomponents-core",
      "purl": "pkg:deb/debian/httpcomponents-core?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "4.4.16-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "httpcomponents-core5",
      "purl": "pkg:deb/debian/httpcomponents-core5?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "5.2.1-1",
      "5.2.2-1",
      "5.2.2-2",
      "5.4-1",
      "5.4.2-1",
      "5.4.2-1.1",
      "5.4.2-2",
      "5.4.3-1",
      "5.4.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "httpcomponents-core5",
      "purl": "pkg:deb/debian/httpcomponents-core5?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "5.2.2-1",
      "5.2.2-2",
      "5.4-1",
      "5.4.2-1",
      "5.4.2-1.1",
      "5.4.2-2",
      "5.4.3-1",
      "5.4.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "5.4.3-1"
          }
        ]
      }
    ],
    "package": {
      "name": "httpcomponents-core5",
      "purl": "pkg:deb/debian/httpcomponents-core5?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "5.2.2-1",
      "5.2.2-2",
      "5.4-1",
      "5.4.2-1",
      "5.4.2-1.1",
      "5.4.2-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54399.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57959 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:33:21 GMT
Publisher date: Wed, 01 Jul 2026 17:16:36 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-54399 · Revision 1Source updated