# io.netty:netty-codec-redis (Maven) vulnerabilities 6 known vulnerabilities (4 high, 2 medium), with the versions each affects and the releases that fix them. ## At a glance - Latest release: 4.2.20.Final (Nov 2, 2026): no advisory affects it - Newest unaffected release: 4.2.20.Final (Nov 2, 2026), the latest release - Dependents: 228 - Releases: 172 since 4.1.0.Final (May 25, 2016) - Registry: https://central.sonatype.com/artifact/io.netty/netty-codec-redis - Releases read: Nov 8, 2026 ## Version timeline Affected versions per advisory, in version order: - CVE-2026-56818: 4.1.0.Final to 4.1.135.Final (4.1.136.Final is outside it); 4.2.0.Final to 4.2.15.Final (4.2.16.Final is outside it) - CVE-2026-50011: 4.1.0.Final to 4.1.134.Final (4.1.135.Final is outside it); 4.2.0.Final to 4.2.14.Final (4.2.15.Final is outside it) - CVE-2026-48006: 4.1.0.Final to 4.1.134.Final (4.1.135.Final is outside it); 4.2.0.Final to 4.2.14.Final (4.2.15.Final is outside it) - CVE-2026-44890: 4.1.0.Final to 4.1.134.Final (4.1.135.Final is outside it); 4.2.0.Final to 4.2.14.Final (4.2.15.Final is outside it) - CVE-2026-44250: 4.1.0.Final to 4.1.134.Final (4.1.135.Final is outside it); 4.2.0.Final to 4.2.14.Final (4.2.15.Final is outside it) - CVE-2026-42586: 4.1.0.Final to 4.1.132.Final (4.1.133.Final is outside it); 4.2.0.Alpha1 to 4.2.12.Final (4.2.13.Final is outside it) ## Advisories (6) ### [CVE-2026-56818](https://cve.now/CVE-2026-56818): Netty: RedisArrayAggregator max-elements failure leaves retained partial aggregate state - Severity: Medium 6.5 - Published: Aug 7, 2026 - Affected: fixed in 4.1.136.Final; from 4.2.0-Final, fixed in 4.2.16.Final. - Fixed in 4.1.136.Final (released Jul 8, 2026, 30 days before disclosure) and 4.2.16.Final (released Jul 7, 2026, 31 days before disclosure). - The latest release, 4.2.20.Final, is not affected. ### [CVE-2026-50011](https://cve.now/CVE-2026-50011): Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length - Severity: High 7.5 - Published: Jun 12, 2026 - Affected: from 4.2.0.Final, fixed in 4.2.15.Final; fixed in 4.1.135.Final. - Fixed in 4.1.135.Final (released Jun 2, 2026, 10 days before disclosure) and 4.2.15.Final (released Jun 2, 2026, 10 days before disclosure). - The latest release, 4.2.20.Final, is not affected. ### [CVE-2026-48006](https://cve.now/CVE-2026-48006): Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator - Severity: High 8.7 - Published: Jun 12, 2026 - Affected: from 4.2.0.Final, fixed in 4.2.15.Final; fixed in 4.1.135.Final. - Fixed in 4.1.135.Final (released Jun 2, 2026, 10 days before disclosure) and 4.2.15.Final (released Jun 2, 2026, 10 days before disclosure). - The latest release, 4.2.20.Final, is not affected. ### [CVE-2026-44890](https://cve.now/CVE-2026-44890): Netty has Unbounded Direct Memory Consumption in its RedisDecoder - Severity: High 7.5 - Published: Jun 11, 2026 - Affected: from 4.2.0.Final, fixed in 4.2.15.Final; fixed in 4.1.135.Final. - Fixed in 4.1.135.Final (released Jun 2, 2026, 9 days before disclosure) and 4.2.15.Final (released Jun 2, 2026, 9 days before disclosure). - The latest release, 4.2.20.Final, is not affected. ### [CVE-2026-44250](https://cve.now/CVE-2026-44250): Netty: Memory Exhaustion in RedisArrayAggregator due to Deeply Nested Arrays - Severity: High 7.5 - Published: Jun 11, 2026 - Affected: from 4.2.0.Final, fixed in 4.2.15.Final; fixed in 4.1.135.Final. - Fixed in 4.1.135.Final (released Jun 2, 2026, 9 days before disclosure) and 4.2.15.Final (released Jun 2, 2026, 9 days before disclosure). - The latest release, 4.2.20.Final, is not affected. ### [CVE-2026-42586](https://cve.now/CVE-2026-42586): Netty: CRLF Injection in Netty Redis Codec Encoder - Severity: Medium 6.8 - Published: May 13, 2026 - Affected: from 4.2.0.Alpha1, fixed in 4.2.13.Final; fixed in 4.1.133.Final. - Fixed in 4.1.133.Final (released May 5, 2026, 8 days before disclosure) and 4.2.13.Final (released May 4, 2026, 9 days before disclosure). - The latest release, 4.2.20.Final, is not affected. --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/packages/maven/io.netty:netty-codec-redis Site guide for agents: https://cve.now/llms.txt Uses NVD data; not endorsed by NVD.