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DEBIAN-CVE-2026-54463

Type: advisorySource: OSV1 source record

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an indefinite sequence of 0x80 or higher bytes that the peer parses into an ever-growing Ruby integer. This can make a WebSocket connection consume an unbounded amount of memory and lead to the host process running out of memory. This issue is fixed in version 0.8.1.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-54463

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-2026-54463

ruby-websocket-driver

Source reference: /affected/0/package/name

Affected versions
0.6.3-3

Source reference: /affected/0/versions

0.8.0-1

Source reference: /affected/0/versions

0.8.1-1

Source reference: /affected/0/versions

0.8.2-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

ruby-websocket-driver

Source reference: /affected/1/package/name

Affected versions
0.6.3-3

Source reference: /affected/1/versions

0.8.0-1

Source reference: /affected/1/versions

0.8.1-1

Source reference: /affected/1/versions

0.8.2-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

ruby-websocket-driver

Source reference: /affected/2/package/name

Affected versions
0.6.3-3

Source reference: /affected/2/versions

0.8.0-1

Source reference: /affected/2/versions

Fixed versions
0.8.1-1

Source reference: /affected/2/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": "ruby-websocket-driver",
      "purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "0.6.3-3",
      "0.8.0-1",
      "0.8.1-1",
      "0.8.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54463.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "ruby-websocket-driver",
      "purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.6.3-3",
      "0.8.0-1",
      "0.8.1-1",
      "0.8.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54463.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.8.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "ruby-websocket-driver",
      "purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.6.3-3",
      "0.8.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54463.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57823 · Revision 1
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Publisher date
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