CVE Watch16 jul 2026

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.

CVSS

7.5

Alto

EPSS

0.8%

p52

KEV

—

Exploit Today

0-100

Publicado: 17 jun 2026 · Última mod.: 16 jul 2026 · CWE-400 · CWE-770 · CWE-1050

EPSS · 30d

0.6%EPSS · 30 días0.8%

2026-06-302026-07-16

Descripción técnica

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.

Referencias oficiales

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