In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending a crafted Redis payload with deeply… (CVE-2026-44250)
Description
Netty-codec-redis versions prior to 4.1.135.Final and 4.2.15.Final contain a vulnerability where an attacker can cause a denial of service (DoS) by sending a crafted Redis payload with deeply nested arrays. This leads to excessive memory allocation and an OutOfMemoryError, disrupting service availability. The issue is patched in versions 4.1.135.Final and 4.2.15.Final.
CVSS v3.1
Score 7.5high
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=questingpkg: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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Netty is a network application framework used for protocol servers and clients. In the netty-codec-redis component, versions before 4.1.135.Final and 4.2.15.Final are vulnerable to a denial of service attack caused by processing a malicious Redis payload containing deeply nested arrays. The crafted payload forces the server to allocate a large number of state objects and collections, resulting in memory exhaustion and an OutOfMemoryError. The vulnerability is addressed in versions 4.1.135.Final and 4.2.15.Final.
Potential Impact
An attacker can cause a denial of service by exhausting server memory resources, leading to an OutOfMemoryError and potential service disruption. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Upgrade netty-codec-redis to version 4.1.135.Final or later, or 4.2.15.Final or later, where the vulnerability is patched. No other mitigation is indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-44250
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:25.10","Ubuntu:26.10","Ubuntu:Pro:26.04:LTS"]
- Cvss Version
- 3.1
Threat ID: 6ad3f6712cdf04f656666261
Added to database: 10/17/2026, 22:28:01 UTC
Last enriched: 10/18/2026, 01:34:22 UTC
Last updated: 10/18/2026, 01:34:22 UTC
Views: 6
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.