High7.5Red Hat & Ubuntu Linux
Netty HAProxy PROXY protocol v2 codec: Denial of Service via memory leak from crafted PROXY protocol headers
CVE-2026-48059 Published Jun 12, 2026
CVE-2026-48059
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Netty HAProxy PROXY protocol v2 codec: Denial of Service via memory leak from crafted PROXY protocol headers. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1286. Affected package(s): netty-codec-haproxy. Resolved in Red Hat advisory RHSA-2026:26586 — update the affected packages (`sudo dnf update`).
Affected versions
- netty-codec-haproxy
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:26586
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26586 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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