Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-93558] Unbounded Per-Connection Queue Growth in WebSocketServerExtensionHandler Leads to Denial of Service

This high-severity Red Hat Linux advisory covers CVE-2026-93558; related products: Red Hat AMQ Broker 7, Red Hat AMQ Clients, Red Hat build of Apache Camel 4 for Quarkus 3.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-93558 Source published Sep 18, 2026Source updated Sep 10, 2026

VulniPulse record published Sep 18, 2026Record updated Sep 25, 2026

CVE-2026-93558

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Summary

Unbounded Per-Connection Queue Growth in WebSocketServerExtensionHandler Leads to Denial of Service. Red Hat rates this important (CVSS 7.5).

Weakness: CWE-1035.

Affected products named by the advisory: Red Hat AMQ Broker 7; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; and 8 more.

Affected products named by the advisory: Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; Red Hat Build of Keycloak; Red Hat Data Grid 8; and 4 more.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

See https://github.com/netty/netty/security/advisories/GHSA-2g37-3h88-55hc for fixed versions and remediation guidance.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

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CVE-2026-93558NVD CVE.org MITRE

Discussion(0)

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