# Netty Project Netty vulnerabilities

Source: https://junglewise.ai/threats/technologies/netty-project-netty  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/netty-project-netty.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 16 vulnerabilities in Netty Project Netty: 0 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-100665, was published on 26 September 2026. Nothing in the last four weeks, down from 6 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 6
- All time: 16 (0 critical, 0 exploited in the wild)

## About Netty Project Netty

Netty is a Java-based asynchronous event-driven network application framework.

## Latest Netty Project Netty vulnerabilities

- [CVE-2026-100665: Netty incomplete hostname verification in QUIC certificate verification](https://junglewise.ai/threats/cve-2026-100665-netty-versions-from-4-2-11-final-before-4-2-18-final-contain-an) (high, CVSS 7.5, published 26 Sep 2026)
- [CVE-2026-93574: Netty netty-codec-http request smuggling via chunk-size parsing](https://junglewise.ai/threats/cve-2026-93574-a-flaw-was-found-in-netty-s-netty-codec-http-component-a-remote) (medium, CVSS 6.5, published 18 Sep 2026)
- [CVE-2026-93579: Netty HTTP/2 header injection vulnerability](https://junglewise.ai/threats/cve-2026-93579-a-flaw-was-found-in-netty-s-http-2-stack-this-vulnerability) (medium, CVSS 6.5, published 18 Sep 2026)
- [CVE-2026-93572: Netty RedisArrayAggregator heap memory exhaustion](https://junglewise.ai/threats/cve-2026-93572-a-flaw-was-found-in-netty-s-redisarrayaggregator-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-93563: Netty SmtpResponseDecoder unbounded memory accumulation](https://junglewise.ai/threats/cve-2026-93563-a-flaw-was-found-in-netty-s-smtpresponsedecoder-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-93494: Netty memory leak in StompSubframeDecoder](https://junglewise.ai/threats/cve-2026-93494-a-flaw-was-found-in-netty-s-stompsubframedecoder-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-59919: Netty CRLF injection in HAProxyMessageEncoder AF_UNIX addresses](https://junglewise.ai/threats/cve-2026-59919-netty-crlf-injection-in-haproxymessageencoder-af-unix-addresses) (medium, CVSS 5.5, published 29 Jul 2026)
- [CVE-2026-44891: Netty denial of service in StompSubframeDecoder](https://junglewise.ai/threats/cve-2026-44891-netty-denial-of-service-in-stompsubframedecoder) (high, CVSS 7.5, published 17 Jul 2026)
- [CVE-2026-48059: Netty memory leak in HAProxy PROXY protocol v2 codec](https://junglewise.ai/threats/cve-2026-48059-netty-memory-leak-in-haproxy-proxy-protocol-v2-codec) (high, CVSS 3.1, published 12 Jun 2026)
- [CVE-2026-48006: Netty memory exhaustion in RedisArrayAggregator](https://junglewise.ai/threats/cve-2026-48006-netty-memory-exhaustion-in-redisarrayaggregator) (high, CVSS 3.1, published 12 Jun 2026)
- [CVE-2026-44893: Netty memory leak in HAProxyMessageDecoder SSL TLV parsing](https://junglewise.ai/threats/cve-2026-44893-netty-memory-leak-in-haproxymessagedecoder-ssl-tlv-parsing) (high, CVSS 7.5, published 12 Jun 2026)
- [CVE-2026-44249: Netty IPv6 subnet filter bypass in netty-handler](https://junglewise.ai/threats/cve-2026-44249-netty-ipv6-subnet-filter-bypass-in-netty-handler) (high, CVSS 8.1, published 11 Jun 2026)
- [CVE-2026-42579: Netty DNS codec input validation bypass in DnsCodecUtil](https://junglewise.ai/threats/cve-2026-42579-netty-dns-codec-input-validation-bypass-in-dnscodecutil) (high, CVSS 7.5, published 13 May 2026)
- [CVE-2026-42578: Netty HTTP header injection in HttpProxyHandler](https://junglewise.ai/threats/cve-2026-42578-netty-http-header-injection-in-httpproxyhandler) (high, CVSS 7.5, published 13 May 2026)
- [CVE-2026-41417: Netty CRLF injection in DefaultHttpRequest setUri](https://junglewise.ai/threats/cve-2026-41417-netty-crlf-injection-in-defaulthttprequest-seturi) (medium, CVSS 5.3, published 6 May 2026)
- [CVE-2026-33871: Netty Denial of Service via HTTP/2 CONTINUATION frame flood](https://junglewise.ai/threats/cve-2026-33871-netty-denial-of-service-via-http-2-continuation-frame-flood) (high, CVSS 7.5, published 27 Mar 2026)

## Most severe Netty Project Netty vulnerabilities

- [CVE-2026-44249: Netty IPv6 subnet filter bypass in netty-handler](https://junglewise.ai/threats/cve-2026-44249-netty-ipv6-subnet-filter-bypass-in-netty-handler) (high, CVSS 8.1, published 11 Jun 2026)
- [CVE-2026-33871: Netty Denial of Service via HTTP/2 CONTINUATION frame flood](https://junglewise.ai/threats/cve-2026-33871-netty-denial-of-service-via-http-2-continuation-frame-flood) (high, CVSS 7.5, published 27 Mar 2026)
- [CVE-2026-42578: Netty HTTP header injection in HttpProxyHandler](https://junglewise.ai/threats/cve-2026-42578-netty-http-header-injection-in-httpproxyhandler) (high, CVSS 7.5, published 13 May 2026)
- [CVE-2026-44893: Netty memory leak in HAProxyMessageDecoder SSL TLV parsing](https://junglewise.ai/threats/cve-2026-44893-netty-memory-leak-in-haproxymessagedecoder-ssl-tlv-parsing) (high, CVSS 7.5, published 12 Jun 2026)
- [CVE-2026-42579: Netty DNS codec input validation bypass in DnsCodecUtil](https://junglewise.ai/threats/cve-2026-42579-netty-dns-codec-input-validation-bypass-in-dnscodecutil) (high, CVSS 7.5, published 13 May 2026)
- [CVE-2026-44891: Netty denial of service in StompSubframeDecoder](https://junglewise.ai/threats/cve-2026-44891-netty-denial-of-service-in-stompsubframedecoder) (high, CVSS 7.5, published 17 Jul 2026)
- [CVE-2026-93572: Netty RedisArrayAggregator heap memory exhaustion](https://junglewise.ai/threats/cve-2026-93572-a-flaw-was-found-in-netty-s-redisarrayaggregator-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-93494: Netty memory leak in StompSubframeDecoder](https://junglewise.ai/threats/cve-2026-93494-a-flaw-was-found-in-netty-s-stompsubframedecoder-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-93563: Netty SmtpResponseDecoder unbounded memory accumulation](https://junglewise.ai/threats/cve-2026-93563-a-flaw-was-found-in-netty-s-smtpresponsedecoder-component-a) (high, CVSS 7.5, published 18 Sep 2026)
- [CVE-2026-100665: Netty incomplete hostname verification in QUIC certificate verification](https://junglewise.ai/threats/cve-2026-100665-netty-versions-from-4-2-11-final-before-4-2-18-final-contain-an) (high, CVSS 7.5, published 26 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 6 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 5 | 0 | 0 |
| 21 Sep 2026 | 1 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Netty Project technologies

- [Netty Project Netty Codec HTTP](https://junglewise.ai/threats/technologies/codec-http): 12 vulnerabilities
- [Netty Project Netty Codec Redis](https://junglewise.ai/threats/technologies/codec-redis): 5 vulnerabilities
- [Netty Project Netty Incubator Codec OHTTP](https://junglewise.ai/threats/technologies/incubator-codec-ohttp): 4 vulnerabilities
- [Netty Project Netty netty-codec-http2](https://junglewise.ai/threats/technologies/netty-codec-http2): 4 vulnerabilities
- [Netty Project Netty Codec HAProxy](https://junglewise.ai/threats/technologies/codec-haproxy): 3 vulnerabilities
- [Netty Project Netty Codec HTTP3](https://junglewise.ai/threats/technologies/codec-http3): 3 vulnerabilities
- [Netty Project Netty Handler SSL OCSP](https://junglewise.ai/threats/technologies/netty-handler-ssl-ocsp): 3 vulnerabilities
- [Netty Project Netty Resolver DNS](https://junglewise.ai/threats/technologies/resolver-dns): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Netty Project Netty vulnerabilities", https://junglewise.ai/threats/technologies/netty-project-netty, 9 November 2026.