CVE-2026-93488: Io.netty/netty-codec-http: netty: denial of service via unbounded concurrent spdy streams
Red Hat · Red Hat Build of Apache Camel 3.33.3.SP2
Vendor fix available · Affected: Red Hat Build of Apache Camel 3.33.3.SP2 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 61% of scored CVEs
DescriptionCVE.org
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.
Affected products20
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Red Hat · Red Hat Build of Apache Camel 3.33.3.SP2Versions not stated
- Red Hat · Red Hat Build of Debezium 3.6Versions not stated
- Red Hat · Red Hat build of Keycloak 26.4Versions not stated
- Red Hat · Red Hat build of Keycloak 26.4Versions not stated
- Red Hat · Red Hat build of Keycloak 26.4Versions not stated
- Red Hat · Red Hat build of Keycloak 26.4.17Versions not stated
- Red Hat · Red Hat build of Keycloak 26.6Versions not stated
- Red Hat · Red Hat build of Keycloak 26.6Versions not stated
- Red Hat · Red Hat build of Keycloak 26.6Versions not stated
- Red Hat · Red Hat build of Keycloak 26.6.8Versions not stated
- Red Hat · Red Hat build of Quarkus 3.27.5.SP2Versions not stated
- Red Hat · Red Hat build of Quarkus 3.33.3.SP2Versions not stated
- Red Hat · Red Hat JBoss Enterprise Application Platform 8.1Versions not stated
- Red Hat · Red Hat AMQ Broker 7Versions not stated
- Red Hat · Red Hat AMQ ClientsVersions not stated
- Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3Versions not stated
- Red Hat · Red Hat build of Apache Camel for Spring Boot 4Versions not stated
- Red Hat · Red Hat build of Apicurio Registry 3Versions not stated
- Red Hat · Red Hat Data Grid 8Versions not stated
- Red Hat · Red Hat Fuse 7Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Red Hat
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-93488 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-770cwe.mitre.org
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
- access.redhat.com/security/cve/CVE-2026-93488access.redhat.com
- Issue trackerbugzilla.redhat.com
- github.com/netty/netty/releases/tag/netty-4.1.138.Finalgithub.com
1 more reference is in the CVE record.