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DEBIAN-CVE-2026-33151

Type: advisorySource: OSV1 source record

Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This issue has been patched in versions 3.3.5, 3.4.4, and 4.2.6.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-33151

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-2026-33151

node-socket.io-parser

Source reference: /affected/0/package/name

Affected versions
4.2.1+~3.1.0-2

Source reference: /affected/0/versions

4.2.1+~3.1.0-3

Source reference: /affected/0/versions

4.2.1+~3.1.0-4

Source reference: /affected/0/versions

4.2.4+~3.1.2-1

Source reference: /affected/0/versions

4.2.4+~3.1.2-2

Source reference: /affected/0/versions

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

node-socket.io-parser

Source reference: /affected/1/package/name

Affected versions
4.2.1+~3.1.0-3

Source reference: /affected/1/versions

4.2.1+~3.1.0-4

Source reference: /affected/1/versions

4.2.4+~3.1.2-1

Source reference: /affected/1/versions

4.2.4+~3.1.2-2

Source reference: /affected/1/versions

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

node-socket.io-parser

Source reference: /affected/2/package/name

Affected versions
4.2.1+~3.1.0-3

Source reference: /affected/2/versions

Fixed versions
4.2.1+~3.1.0-4

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": "node-socket.io-parser",
      "purl": "pkg:deb/debian/node-socket.io-parser?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "4.2.1+~3.1.0-2",
      "4.2.1+~3.1.0-3",
      "4.2.1+~3.1.0-4",
      "4.2.4+~3.1.2-1",
      "4.2.4+~3.1.2-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33151.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-socket.io-parser",
      "purl": "pkg:deb/debian/node-socket.io-parser?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "4.2.1+~3.1.0-3",
      "4.2.1+~3.1.0-4",
      "4.2.4+~3.1.2-1",
      "4.2.4+~3.1.2-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33151.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.2.1+~3.1.0-4"
          }
        ]
      }
    ],
    "package": {
      "name": "node-socket.io-parser",
      "purl": "pkg:deb/debian/node-socket.io-parser?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "4.2.1+~3.1.0-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33151.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56387 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. DEBIAN-CVE-2026-33151 · Revision 1Source updated