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CVE-2026-48779

Опубликовано: 16 июн. 2026
Источник: redhat
CVSS3: 7.5
EPSS Низкий

Описание

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.

A flaw was found in ws, an open source WebSocket client and server. A remote attacker can exploit this memory exhaustion vulnerability by sending a high volume of exceptionally small fragments and data chunks. This action forces the affected component to allocate and hold structural wrappers that consume excessive memory. Consequently, this leads to process termination and a denial of service (DoS) for the remote peer.

Отчет

This is an Important denial of service vulnerability in the ws WebSocket library. A remote attacker can exploit this flaw by sending a high volume of small, fragmented data, leading to excessive memory consumption and subsequent process termination. This can result in service disruption for Red Hat products that utilize ws for WebSocket communication.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Cryostat 4cryostat-openshift-console-plugin-npmNot affected
Cryostat 4grafana-infinity-datasource-npmNot affected
Cryostat 4wsNot affected
Gatekeeper 3gatekeeper/gatekeeper-rhel9Not affected
Node HealthCheck Operatorworkload-availability/node-healthcheck-must-gather-rhel9Affected
Node HealthCheck Operatorworkload-availability/node-healthcheck-operator-bundleAffected
Node HealthCheck Operatorworkload-availability/node-healthcheck-rhel9-operatorAffected
OpenShift Lightspeedopenshift-lightspeed/lightspeed-console-plugin-419-rhel9Affected
OpenShift Lightspeedopenshift-lightspeed/lightspeed-console-plugin-pf5-rhel9Affected
OpenShift Lightspeedopenshift-lightspeed/lightspeed-console-plugin-rhel9Affected

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Дополнительная информация

Статус:

Important
Дефект:
CWE-1050
https://bugzilla.redhat.com/show_bug.cgi?id=2489661ws: ws: Denial of Service via memory exhaustion from small WebSocket fragments

EPSS

Процентиль: 52%
0.00782
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
ubuntu
около 2 месяцев назад

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.

CVSS3: 7.5
nvd
около 2 месяцев назад

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.

msrc
около 1 месяца назад

ws: Memory exhaustion DoS from tiny fragments and data chunks

CVSS3: 7.5
debian
около 2 месяцев назад

ws is an open source WebSocket client and server for Node.js. All vers ...

CVSS3: 7.5
github
около 2 месяцев назад

ws: Memory exhaustion DoS from tiny fragments and data chunks

EPSS

Процентиль: 52%
0.00782
Низкий

7.5 High

CVSS3