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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-48779

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 54.8%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-48779
  • Ws Project » Ws » Version: 1.1.0
    cpe:2.3:a:ws_project:ws:1.1.0
  • Ws Project » Ws » Version: 1.1.1
    cpe:2.3:a:ws_project:ws:1.1.1
  • Ws Project » Ws » Version: 1.1.2
    cpe:2.3:a:ws_project:ws:1.1.2
  • Ws Project » Ws » Version: 1.1.3
    cpe:2.3:a:ws_project:ws:1.1.3
  • Ws Project » Ws » Version: 1.1.4
    cpe:2.3:a:ws_project:ws:1.1.4
  • Ws Project » Ws » Version: 1.1.5
    cpe:2.3:a:ws_project:ws:1.1.5
  • Ws Project » Ws » Version: 2.0.0
    cpe:2.3:a:ws_project:ws:2.0.0
  • Ws Project » Ws » Version: 2.0.1
    cpe:2.3:a:ws_project:ws:2.0.1
  • Ws Project » Ws » Version: 2.0.2
    cpe:2.3:a:ws_project:ws:2.0.2
  • Ws Project » Ws » Version: 2.0.3
    cpe:2.3:a:ws_project:ws:2.0.3
  • Ws Project » Ws » Version: 2.1.0
    cpe:2.3:a:ws_project:ws:2.1.0
  • Ws Project » Ws » Version: 2.2.0
    cpe:2.3:a:ws_project:ws:2.2.0
  • Ws Project » Ws » Version: 2.2.1
    cpe:2.3:a:ws_project:ws:2.2.1
  • Ws Project » Ws » Version: 2.2.2
    cpe:2.3:a:ws_project:ws:2.2.2
  • Ws Project » Ws » Version: 2.2.3
    cpe:2.3:a:ws_project:ws:2.2.3
  • Ws Project » Ws » Version: 2.3.0
    cpe:2.3:a:ws_project:ws:2.3.0
  • Ws Project » Ws » Version: 2.3.1
    cpe:2.3:a:ws_project:ws:2.3.1
  • Ws Project » Ws » Version: 3.0.0
    cpe:2.3:a:ws_project:ws:3.0.0
  • Ws Project » Ws » Version: 3.1.0
    cpe:2.3:a:ws_project:ws:3.1.0
  • Ws Project » Ws » Version: 3.2.0
    cpe:2.3:a:ws_project:ws:3.2.0
  • Ws Project » Ws » Version: 3.3.0
    cpe:2.3:a:ws_project:ws:3.3.0
  • Ws Project » Ws » Version: 3.3.1
    cpe:2.3:a:ws_project:ws:3.3.1
  • Ws Project » Ws » Version: 3.3.2
    cpe:2.3:a:ws_project:ws:3.3.2
  • Ws Project » Ws » Version: 3.3.3
    cpe:2.3:a:ws_project:ws:3.3.3
  • Ws Project » Ws » Version: 4.0.0
    cpe:2.3:a:ws_project:ws:4.0.0
  • Ws Project » Ws » Version: 4.1.0
    cpe:2.3:a:ws_project:ws:4.1.0
  • Ws Project » Ws » Version: 5.0.0
    cpe:2.3:a:ws_project:ws:5.0.0
  • Ws Project » Ws » Version: 5.1.0
    cpe:2.3:a:ws_project:ws:5.1.0
  • Ws Project » Ws » Version: 5.1.1
    cpe:2.3:a:ws_project:ws:5.1.1
  • Ws Project » Ws » Version: 5.2.0
    cpe:2.3:a:ws_project:ws:5.2.0
  • Ws Project » Ws » Version: 5.2.1
    cpe:2.3:a:ws_project:ws:5.2.1
  • Ws Project » Ws » Version: 5.2.2
    cpe:2.3:a:ws_project:ws:5.2.2
  • Ws Project » Ws » Version: 5.2.3
    cpe:2.3:a:ws_project:ws:5.2.3
  • Ws Project » Ws » Version: 5.2.4
    cpe:2.3:a:ws_project:ws:5.2.4
  • Ws Project » Ws » Version: 6.0.0
    cpe:2.3:a:ws_project:ws:6.0.0
  • Ws Project » Ws » Version: 6.1.0
    cpe:2.3:a:ws_project:ws:6.1.0
  • Ws Project » Ws » Version: 6.1.1
    cpe:2.3:a:ws_project:ws:6.1.1
  • Ws Project » Ws » Version: 6.1.2
    cpe:2.3:a:ws_project:ws:6.1.2
  • Ws Project » Ws » Version: 6.1.3
    cpe:2.3:a:ws_project:ws:6.1.3
  • Ws Project » Ws » Version: 6.1.4
    cpe:2.3:a:ws_project:ws:6.1.4
  • Ws Project » Ws » Version: 6.2.0
    cpe:2.3:a:ws_project:ws:6.2.0
  • Ws Project » Ws » Version: 6.2.1
    cpe:2.3:a:ws_project:ws:6.2.1
  • Ws Project » Ws » Version: 6.2.2
    cpe:2.3:a:ws_project:ws:6.2.2
  • Ws Project » Ws » Version: 6.2.3
    cpe:2.3:a:ws_project:ws:6.2.3
  • Ws Project » Ws » Version: 7.0.0
    cpe:2.3:a:ws_project:ws:7.0.0
  • Ws Project » Ws » Version: 7.0.1
    cpe:2.3:a:ws_project:ws:7.0.1
  • Ws Project » Ws » Version: 7.1.0
    cpe:2.3:a:ws_project:ws:7.1.0
  • Ws Project » Ws » Version: 7.1.1
    cpe:2.3:a:ws_project:ws:7.1.1
  • Ws Project » Ws » Version: 7.1.2
    cpe:2.3:a:ws_project:ws:7.1.2
  • Ws Project » Ws » Version: 7.2.0
    cpe:2.3:a:ws_project:ws:7.2.0
  • Ws Project » Ws » Version: 7.2.1
    cpe:2.3:a:ws_project:ws:7.2.1
  • Ws Project » Ws » Version: 7.2.2
    cpe:2.3:a:ws_project:ws:7.2.2
  • Ws Project » Ws » Version: 7.2.3
    cpe:2.3:a:ws_project:ws:7.2.3
  • Ws Project » Ws » Version: 7.2.4
    cpe:2.3:a:ws_project:ws:7.2.4
  • Ws Project » Ws » Version: 7.2.5
    cpe:2.3:a:ws_project:ws:7.2.5
  • Ws Project » Ws » Version: 7.3.0
    cpe:2.3:a:ws_project:ws:7.3.0
  • Ws Project » Ws » Version: 7.3.1
    cpe:2.3:a:ws_project:ws:7.3.1
  • Ws Project » Ws » Version: 7.4.0
    cpe:2.3:a:ws_project:ws:7.4.0
  • Ws Project » Ws » Version: 7.4.1
    cpe:2.3:a:ws_project:ws:7.4.1
  • Ws Project » Ws » Version: 7.4.2
    cpe:2.3:a:ws_project:ws:7.4.2
  • Ws Project » Ws » Version: 7.4.3
    cpe:2.3:a:ws_project:ws:7.4.3
  • Ws Project » Ws » Version: 7.4.4
    cpe:2.3:a:ws_project:ws:7.4.4
  • Ws Project » Ws » Version: 7.4.5
    cpe:2.3:a:ws_project:ws:7.4.5
  • Ws Project » Ws » Version: 7.4.6
    cpe:2.3:a:ws_project:ws:7.4.6
  • Ws Project » Ws » Version: 7.5.0
    cpe:2.3:a:ws_project:ws:7.5.0
  • Ws Project » Ws » Version: 7.5.1
    cpe:2.3:a:ws_project:ws:7.5.1
  • Ws Project » Ws » Version: 7.5.10
    cpe:2.3:a:ws_project:ws:7.5.10
  • Ws Project » Ws » Version: 7.5.2
    cpe:2.3:a:ws_project:ws:7.5.2
  • Ws Project » Ws » Version: 7.5.3
    cpe:2.3:a:ws_project:ws:7.5.3
  • Ws Project » Ws » Version: 7.5.4
    cpe:2.3:a:ws_project:ws:7.5.4
  • Ws Project » Ws » Version: 7.5.5
    cpe:2.3:a:ws_project:ws:7.5.5
  • Ws Project » Ws » Version: 7.5.6
    cpe:2.3:a:ws_project:ws:7.5.6
  • Ws Project » Ws » Version: 7.5.7
    cpe:2.3:a:ws_project:ws:7.5.7
  • Ws Project » Ws » Version: 7.5.8
    cpe:2.3:a:ws_project:ws:7.5.8
  • Ws Project » Ws » Version: 7.5.9
    cpe:2.3:a:ws_project:ws:7.5.9
  • Ws Project » Ws » Version: 8.0.0
    cpe:2.3:a:ws_project:ws:8.0.0
  • Ws Project » Ws » Version: 8.1.0
    cpe:2.3:a:ws_project:ws:8.1.0
  • Ws Project » Ws » Version: 8.10.0
    cpe:2.3:a:ws_project:ws:8.10.0
  • Ws Project » Ws » Version: 8.11.0
    cpe:2.3:a:ws_project:ws:8.11.0
  • Ws Project » Ws » Version: 8.12.0
    cpe:2.3:a:ws_project:ws:8.12.0
  • Ws Project » Ws » Version: 8.12.1
    cpe:2.3:a:ws_project:ws:8.12.1
  • Ws Project » Ws » Version: 8.13.0
    cpe:2.3:a:ws_project:ws:8.13.0
  • Ws Project » Ws » Version: 8.14.0
    cpe:2.3:a:ws_project:ws:8.14.0
  • Ws Project » Ws » Version: 8.14.1
    cpe:2.3:a:ws_project:ws:8.14.1
  • Ws Project » Ws » Version: 8.14.2
    cpe:2.3:a:ws_project:ws:8.14.2
  • Ws Project » Ws » Version: 8.15.0
    cpe:2.3:a:ws_project:ws:8.15.0
  • Ws Project » Ws » Version: 8.15.1
    cpe:2.3:a:ws_project:ws:8.15.1
  • Ws Project » Ws » Version: 8.16.0
    cpe:2.3:a:ws_project:ws:8.16.0
  • Ws Project » Ws » Version: 8.17.0
    cpe:2.3:a:ws_project:ws:8.17.0
  • Ws Project » Ws » Version: 8.17.1
    cpe:2.3:a:ws_project:ws:8.17.1
  • Ws Project » Ws » Version: 8.18.0
    cpe:2.3:a:ws_project:ws:8.18.0
  • Ws Project » Ws » Version: 8.18.1
    cpe:2.3:a:ws_project:ws:8.18.1
  • Ws Project » Ws » Version: 8.18.2
    cpe:2.3:a:ws_project:ws:8.18.2
  • Ws Project » Ws » Version: 8.18.3
    cpe:2.3:a:ws_project:ws:8.18.3
  • Ws Project » Ws » Version: 8.19.0
    cpe:2.3:a:ws_project:ws:8.19.0
  • Ws Project » Ws » Version: 8.2.0
    cpe:2.3:a:ws_project:ws:8.2.0
  • Ws Project » Ws » Version: 8.2.1
    cpe:2.3:a:ws_project:ws:8.2.1
  • Ws Project » Ws » Version: 8.2.2
    cpe:2.3:a:ws_project:ws:8.2.2
  • Ws Project » Ws » Version: 8.2.3
    cpe:2.3:a:ws_project:ws:8.2.3
  • Ws Project » Ws » Version: 8.20.0
    cpe:2.3:a:ws_project:ws:8.20.0
  • Ws Project » Ws » Version: 8.20.1
    cpe:2.3:a:ws_project:ws:8.20.1
  • Ws Project » Ws » Version: 8.3.0
    cpe:2.3:a:ws_project:ws:8.3.0
  • Ws Project » Ws » Version: 8.4.0
    cpe:2.3:a:ws_project:ws:8.4.0
  • Ws Project » Ws » Version: 8.4.1
    cpe:2.3:a:ws_project:ws:8.4.1
  • Ws Project » Ws » Version: 8.4.2
    cpe:2.3:a:ws_project:ws:8.4.2
  • Ws Project » Ws » Version: 8.5.0
    cpe:2.3:a:ws_project:ws:8.5.0
  • Ws Project » Ws » Version: 8.6.0
    cpe:2.3:a:ws_project:ws:8.6.0
  • Ws Project » Ws » Version: 8.7.0
    cpe:2.3:a:ws_project:ws:8.7.0
  • Ws Project » Ws » Version: 8.8.0
    cpe:2.3:a:ws_project:ws:8.8.0
  • Ws Project » Ws » Version: 8.8.1
    cpe:2.3:a:ws_project:ws:8.8.1
  • Ws Project » Ws » Version: 8.9.0
    cpe:2.3:a:ws_project:ws:8.9.0


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