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CVE-2026-56818

Опубликовано: 09 июл. 2026
Источник: redhat
CVSS3: 7.5
EPSS Низкий

Описание

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk string child, then send a nested array header longer than the configured maxElements. Netty throws a decoder exception in decodeRedisArrayHeader, but the existing partial aggregate remains retained in the handler. If the application leaves the channel alive after the exception, later messages are still consumed into the pre-error aggregate, allowing an unauthenticated peer to keep attacker-controlled aggregate state alive across a security-limit exception and pin retained pooled buffers. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

A flaw was found in the Netty netty-codec-redis component. This vulnerability allows a remote attacker to cause a denial of service (DoS) by sending specially crafted Redis protocol frames over long-lived connections. The Redis decoder fails to properly release allocated memory, leading to memory exhaustion and application instability.

Отчет

This vulnerability is rated as Important because a remote attacker can cause a denial of service in applications utilizing netty-codec-redis by sending specially crafted Redis protocol frames. The memory leak in long-lived Redis connections can lead to JVM heap exhaustion, making the service unavailable.

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
Red Hat build of Apache Camel for Spring Boot 4netty-codec-redisFix deferred
Red Hat Data Grid 8netty-codec-redisFix deferred
Red Hat JBoss Enterprise Application Platform 7eap74-els-openjdk11-openshift-rhel8/eap74-els-openjdk11-openshift-rhel8Out of support scope
Red Hat JBoss Enterprise Application Platform 7eap74-els-openjdk17-openshift-rhel8/eap74-els-openjdk17-openshift-rhel8Out of support scope
Red Hat JBoss Enterprise Application Platform 7eap74-els-openjdk8-openshift-rhel8/eap74-els-openjdk8-openshift-rhel8Out of support scope
Red Hat JBoss Enterprise Application Platform 7jboss-eap-7-eap74-els-openjdk17-openshift-rhel8/jboss-eap-7-eap74-els-openjdk17-openshift-rhel8Out of support scope
Red Hat JBoss Enterprise Application Platform 7jboss-eap-7-eap74-els-openjdk8-openshift-rhel8/jboss-eap-7-eap74-els-openjdk8-openshift-rhel8Out of support scope
Red Hat JBoss Enterprise Application Platform 7netty-codec-redisOut of support scope
Red Hat JBoss Enterprise Application Platform Expansion Packnetty-codec-redisFix deferred
Red Hat Single Sign-On 7netty-codec-redisOut of support scope

Показывать по

Дополнительная информация

Статус:

Important
Дефект:
CWE-772
https://bugzilla.redhat.com/show_bug.cgi?id=2507476io.netty/netty-codec-redis: Netty: Memory leak in netty-codec-redis

EPSS

Процентиль: 41%
0.00473
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 6.5
ubuntu
3 месяца назад

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk string child, then send a nested array header longer than the configured maxElements. Netty throws a decoder exception in decodeRedisArrayHeader, but the existing partial aggregate remains retained in the handler. If the application leaves the channel alive after the exception, later messages are still consumed into the pre-error aggregate, allowing an unauthenticated peer to keep attacker-controlled aggregate state alive across a security-limit exception and pin retained pooled buffers. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

CVSS3: 6.5
nvd
3 месяца назад

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk string child, then send a nested array header longer than the configured maxElements. Netty throws a decoder exception in decodeRedisArrayHeader, but the existing partial aggregate remains retained in the handler. If the application leaves the channel alive after the exception, later messages are still consumed into the pre-error aggregate, allowing an unauthenticated peer to keep attacker-controlled aggregate state alive across a security-limit exception and pin retained pooled buffers. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

CVSS3: 6.5
debian
3 месяца назад

Netty is an asynchronous, event-driven network application framework. ...

CVSS3: 6.5
redos
18 дней назад

Уязвимость netty

CVSS3: 6.5
redos
18 дней назад

Уязвимость netty

EPSS

Процентиль: 41%
0.00473
Низкий

7.5 High

CVSS3