Red Hat Build of Apache Camel 3.33.3.SP2 · denial of service
cve-program · CVE-2026-93558
PublishedA flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-93558 · CVE overview and exploitation status
cve-program · CVE-2026-93558
- https://access.redhat.com/errata/RHSA-2026:69440
- https://access.redhat.com/errata/RHSA-2026:69470
- https://access.redhat.com/errata/RHSA-2026:70257
- https://access.redhat.com/errata/RHSA-2026:83612
- https://access.redhat.com/errata/RHSA-2026:95759
- https://access.redhat.com/errata/RHSA-2026:95760
- https://access.redhat.com/errata/RHSA-2026:95761
- https://access.redhat.com/errata/RHSA-2026:95762
- https://access.redhat.com/errata/RHSA-2026:95887
- https://access.redhat.com/security/cve/CVE-2026-93558
- https://bugzilla.redhat.com/show_bug.cgi?id=2536932
Related changes
Linked by CVE identifier- Io.netty/netty-codec-http: netty: unbounded per-connection queue growth in websocketserverextensionhandler leads to denial of service · Affected-version evidence changed · 6 Nov 2026
- Io.netty/netty-codec-http: netty: unbounded per-connection queue growth in websocketserverextensionhandler leads to denial of service · Affected-version evidence changed · 6 Nov 2026
- Io.netty/netty-codec-http: netty: unbounded per-connection queue growth in websocketserverextensionhandler leads to denial of service · Affected-version evidence changed · 6 Nov 2026
- Crowd Data Center: DoS (Denial of Service) io.netty:netty-codec-http Dependency (CVE-2026-93558) · Security advisory · 20 Oct 2026