CVE-2026-48779: fallo de gravedad alta en websockets ws
ws: Memory exhaustion DoS from tiny fragments and data chunks
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 1.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
websockets · wsCVEs relacionadas — websockets ws
En el mismo producto, de las más peligrosas a las menos.
Referencias
https://access.redhat.com/errata/RHSA-2026:29197https://access.redhat.com/errata/RHSA-2026:33155https://access.redhat.com/errata/RHSA-2026:33160https://access.redhat.com/errata/RHSA-2026:33163https://access.redhat.com/errata/RHSA-2026:33173https://access.redhat.com/errata/RHSA-2026:33183https://access.redhat.com/errata/RHSA-2026:33574https://access.redhat.com/errata/RHSA-2026:34342https://access.redhat.com/errata/RHSA-2026:36754https://access.redhat.com/errata/RHSA-2026:36820https://access.redhat.com/errata/RHSA-2026:37272https://access.redhat.com/errata/RHSA-2026:40984