7.5

CVE-2026-93488

Io.netty/netty-codec-http: netty: denial of service via unbounded concurrent spdy streams

A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYN_STREAM frames with FLAG_FIN=0, causing unbounded heap and direct memory allocation that can lead to JVM OutOfMemoryError and a denial of service.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt Red Hat AMQ Broker 7
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Produkt Red Hat AMQ Clients
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Produkt Red Hat build of Apache Camel 4 for Quarkus 3
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Produkt Red Hat build of Apache Camel for Spring Boot 4
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Produkt Red Hat build of Apicurio Registry 3
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Produkt Red Hat build of Debezium 3
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Produkt Red Hat Build of Keycloak
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Produkt Red Hat Data Grid 8
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Produkt Red Hat Fuse 7
Default Statusunknown
HerstellerRed Hat
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Produkt Red Hat JBoss Enterprise Application Platform 7
Default Statusunknown
HerstellerRed Hat
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Produkt Red Hat JBoss Enterprise Application Platform 8
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Single Sign-On 7
Default Statusaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.392
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://github.com/netty/netty/releases/tag/netty-4.1.138.Final
https://github.com/netty/netty/releases/tag/netty-4.2.18.Final
https://access.redhat.com/security/cve/CVE-2026-93488
https://bugzilla.redhat.com/show_bug.cgi?id=2536887
https://access.redhat.com/errata/RHSA-2026:69470
https://access.redhat.com/errata/RHSA-2026:69440
https://access.redhat.com/errata/RHSA-2026:70257