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DEBIAN-CVE-2026-48779

Type: advisorySource: OSV1 source record

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-48779

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-2026-48779

node-ws

Source reference: /affected/0/package/name

Affected versions
8.11.0+~cs13.7.3-1

Source reference: /affected/0/versions

8.11.0+~cs13.7.3-2

Source reference: /affected/0/versions

8.18.0+~cs13.7.11-1

Source reference: /affected/0/versions

8.18.0+~cs14.5.15-1

Source reference: /affected/0/versions

8.18.1+~cs14.18.2-1

Source reference: /affected/0/versions

8.19.0+~cs14.19.1-1

Source reference: /affected/0/versions

8.20.1+~cs14.19.1-1

Source reference: /affected/0/versions

8.21.0+~cs14.19.1-1

Source reference: /affected/0/versions

8.21.1+~cs14.19.1-1

Source reference: /affected/0/versions

8.21.3+~cs14.19.1-1

Source reference: /affected/0/versions

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

node-ws

Source reference: /affected/1/package/name

Affected versions
8.18.1+~cs14.18.2-1

Source reference: /affected/1/versions

8.19.0+~cs14.19.1-1

Source reference: /affected/1/versions

8.20.1+~cs14.19.1-1

Source reference: /affected/1/versions

8.21.0+~cs14.19.1-1

Source reference: /affected/1/versions

8.21.1+~cs14.19.1-1

Source reference: /affected/1/versions

8.21.3+~cs14.19.1-1

Source reference: /affected/1/versions

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

node-ws

Source reference: /affected/2/package/name

Affected versions
8.18.1+~cs14.18.2-1

Source reference: /affected/2/versions

8.19.0+~cs14.19.1-1

Source reference: /affected/2/versions

8.20.1+~cs14.19.1-1

Source reference: /affected/2/versions

Fixed versions
8.21.0+~cs14.19.1-1

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": "node-ws",
      "purl": "pkg:deb/debian/node-ws?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "8.11.0+~cs13.7.3-1",
      "8.11.0+~cs13.7.3-2",
      "8.18.0+~cs13.7.11-1",
      "8.18.0+~cs14.5.15-1",
      "8.18.1+~cs14.18.2-1",
      "8.19.0+~cs14.19.1-1",
      "8.20.1+~cs14.19.1-1",
      "8.21.0+~cs14.19.1-1",
      "8.21.1+~cs14.19.1-1",
      "8.21.3+~cs14.19.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48779.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ws",
      "purl": "pkg:deb/debian/node-ws?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "8.18.1+~cs14.18.2-1",
      "8.19.0+~cs14.19.1-1",
      "8.20.1+~cs14.19.1-1",
      "8.21.0+~cs14.19.1-1",
      "8.21.1+~cs14.19.1-1",
      "8.21.3+~cs14.19.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48779.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "8.21.0+~cs14.19.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ws",
      "purl": "pkg:deb/debian/node-ws?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "8.18.1+~cs14.18.2-1",
      "8.19.0+~cs14.19.1-1",
      "8.20.1+~cs14.19.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48779.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57773 · Revision 1
Added to Heist Feed
Publisher date
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