In versions prior to 4.1.136.Final and 4.2.16.Final, Netty's HAProxy encoder ( HAProxyMessageEncoder ) writes AF_UNIX source and destination socket… (CVE-2026-59919)
Description
CVE-2026-59919 is a medium severity vulnerability in the Netty network application framework affecting versions prior to 4.1.136.Final and 4.2.16.Final. It involves improper neutralization of CRLF sequences in the HAProxyMessageEncoder, potentially leading to injection issues impacting data integrity. The vulnerability has no known exploits in the wild and does not affect confidentiality or availability.
CVSS v3.1
Score 5.5medium
Affected software
pkg:deb/ubuntu/netty?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/netty?arch=source&distro=esm-apps-legacy/xenialpkg:deb/ubuntu/netty?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/netty?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/netty?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/netty?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/netty?arch=source&distro=stonkingpkg:deb/ubuntu/netty?arch=source&distro=esm-apps/resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-59919) in Netty's HAProxyMessageEncoder component relates to CWE-93, improper neutralization of CRLF sequences in input. It affects versions prior to 4.1.136.Final and 4.2.16.Final. The issue can lead to injection problems that impact the integrity of data processed by the encoder. The CVSS 3.1 base score is 5.5, indicating a moderate impact primarily on integrity with no confidentiality or availability impact. There are no known exploits reported, and no patch or remediation details are provided in the available data.
Potential Impact
The vulnerability impacts the integrity of data handled by Netty's HAProxyMessageEncoder due to improper neutralization of CRLF sequences, which could allow injection attacks. There is no impact on confidentiality or availability. No active exploitation is known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should monitor vendor communications for updates. No specific mitigation steps are provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wh89-7897-x99h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-59919"]
- Ecosystems
- ["Maven"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a6150d39c2644c7f8da06d2
Added to database: 07/22/2026, 23:22:59 UTC
Last enriched: 10/18/2026, 04:34:42 UTC
Last updated: 10/21/2026, 13:20:22 UTC
Views: 662
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