CVE-2026-93564: CWE-1035 in Red Hat Red Hat AMQ Broker 7
A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-93564) affects Red Hat AMQ Broker 7 and is characterized by a ByteBuf reference-count leak in the handling of HAProxy PROXY-v2 nested-TLV structures. The flaw stems from an incomplete fix of a prior issue (PR #16881). The CVSS 3.1 score is 7.5, reflecting a network attack vector with low complexity, no privileges or user interaction required, and impact limited to availability (denial of service). The vendor advisory is published but does not provide explicit patch or remediation details in the provided data.
Potential Impact
The vulnerability can lead to denial of service conditions by leaking ByteBuf references, potentially exhausting system resources. There is no impact on confidentiality or integrity. No active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-93564 for current remediation guidance. Until a fix is confirmed, monitor vendor updates closely.
CVE-2026-93564: CWE-1035 in Red Hat Red Hat AMQ Broker 7
Description
A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system.
CVSS v3.1
Score 7.5high
Affected software
Red Hat
Red Hat AMQ Broker 7
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 Fuse 7
Red Hat
Red Hat JBoss Enterprise Application Platform 7
Red Hat
Red Hat Single Sign-On 7
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-93564) affects Red Hat AMQ Broker 7 and is characterized by a ByteBuf reference-count leak in the handling of HAProxy PROXY-v2 nested-TLV structures. The flaw stems from an incomplete fix of a prior issue (PR #16881). The CVSS 3.1 score is 7.5, reflecting a network attack vector with low complexity, no privileges or user interaction required, and impact limited to availability (denial of service). The vendor advisory is published but does not provide explicit patch or remediation details in the provided data.
Potential Impact
The vulnerability can lead to denial of service conditions by leaking ByteBuf references, potentially exhausting system resources. There is no impact on confidentiality or integrity. No active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-93564 for current remediation guidance. Until a fix is confirmed, monitor vendor updates closely.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-09-18T09:58:47.232Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-93564","vendor":"Red Hat"}]
Threat ID: 6aad4b7355bf5e2cf51f5ed0
Added to database: 09/18/2026, 14:32:19 UTC
Last enriched: 09/18/2026, 14:46:42 UTC
Last updated: 09/18/2026, 23:09:15 UTC
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.