CVE-2026-93488: Allocation of Resources Without Limits or Throttling in Red Hat Red Hat AMQ Broker 7
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.
CVE-2026-93488: Allocation of Resources Without Limits or Throttling in Red Hat Red Hat AMQ Broker 7
Description
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.
CVSS v3.1
Score 7.5high
Affected software
Red Hat
Red Hat AMQ Broker 7
Red Hat
Red Hat AMQ Clients
Red Hat
Red Hat build of Apache Camel 4 for Quarkus 3
Red Hat
Red Hat build of Apache Camel for Spring Boot 4
Red Hat
Red Hat build of Apicurio Registry 3
Red Hat
Red Hat build of Debezium 3
Red Hat
Red Hat Build of Keycloak
Red Hat
Red Hat build of Quarkus
Red Hat
Red Hat Data Grid 8
Red Hat
Red Hat Fuse 7
Red Hat
Red Hat JBoss Enterprise Application Platform 7
Red Hat
Red Hat JBoss Enterprise Application Platform 8
Red Hat
Red Hat Single Sign-On 7
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-09-18T06:32:38.574Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-93488","vendor":"Red Hat"}]
Threat ID: 6aad283e55bf5e2cf5f7f7b6
Added to database: 09/18/2026, 12:02:06 UTC
Last updated: 09/18/2026, 12:02:06 UTC
Views: 1
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