ws vulnerabilities and fixes

Recent CVEs affecting ws, with upgrade or downgrade steps. 2 tracked.

ws has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-06-17. Highest priority: CVE-2026-48779 (score 54/100).

• CVE-2026-45736 MEDIUM 4.4 UPGRADE ws is an open source WebSocket client and server for Node.js
• CVE-2026-48779 HIGH 7.5 UPGRADE ws is an open source WebSocket client and server for Node.js

FAQ

How do I fix ws vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is ws being exploited right now?

None of the tracked ws CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which ws CVE should I patch first?

CVE-2026-48779 currently ranks highest (54/100): ws is an open source WebSocket client and server for Node.js.

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