Technology · Netty
Netty-Codec-Http vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 18 vulnerabilities in Netty-Codec-Http: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-100658, was published on 26 September 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before.
- Last 7 days
- 0
- Last 90 days
- 4
- Critical, all time
- 0
- Exploited in the wild
- 0
About Netty-Codec-Http
Java library providing HTTP/1.1 and HTTP/2 protocol codec implementations for Netty.
Latest Netty-Codec-Http vulnerabilities
- CVE-2026-100658: Netty unbounded queue denial of service in WebSocketServerExtensionHandlermediumCVSS 5.3
- CVE-2026-100656: Netty HttpServerCodec unbounded queue growth via HTTP/1.1 pipelininghighCVSS 7.5
- CVE-2026-100655: Netty netty-codec-http denial of service in SpdySessionHandlerhighCVSS 7.5
- CVE-2026-59903: Netty CorsHandler cache poisoning via Vary header overwritemediumCVSS 6.5EPSS 0.3%
- CVE-2026-59898: Netty HTTP request smuggling via lax WebSocket handshake validationmediumCVSS 4EPSS 0.4%
- CVE-2026-59899: Netty resource exhaustion in HttpContentEncoder via HTTP pipeliningmediumCVSS 4EPSS 0.6%
- CVE-2026-59921: Netty CRLF injection in HttpPostRequestEncoder multipart filenamesmediumCVSS 5.7EPSS 0.5%
- CVE-2026-56746: Netty security bypass in CorsHandler origin evaluationmediumCVSS 6.5EPSS 0.4%
- CVE-2026-56745: Netty memory leak in SpdyHttpDecoder leading to DoShighCVSS 4EPSS 0.6%
- CVE-2026-55833: Netty resource exhaustion in SPDY header decodinghighCVSS 7.5EPSS 0.7%
- CVE-2026-55831: Netty resource exhaustion in SPDY SETTINGS decoderhighCVSS 7.5EPSS 0.7%
- CVE-2026-50020: Netty HTTP request smuggling in HttpObjectDecodermediumCVSS 5.3EPSS 0.4%
- CVE-2026-42587: Netty denial of service via decompression limit bypasshighCVSS 7.5EPSS 1.1%
- CVE-2026-42585: Netty HTTP request smuggling via malformed Transfer-EncodingmediumCVSS 6.5EPSS 0.3%
- CVE-2026-42584: Netty HttpClientCodec response desynchronizationhighCVSS 7.3EPSS 0.7%
- CVE-2026-42581: Netty HTTP request smuggling in HttpObjectDecodermediumCVSS 5.8EPSS 0.7%
- CVE-2026-42580: Netty integer overflow in HTTP chunk size parsermediumCVSS 6.5EPSS 0.4%
- CVE-2026-33870: Netty request smuggling via chunked extension quoted-string parsinghighCVSS 7.5EPSS 0.7%
Most severe Netty-Codec-Http vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-42587: Netty denial of service via decompression limit bypasshighCVSS 7.5EPSS 1.1%
- CVE-2026-33870: Netty request smuggling via chunked extension quoted-string parsinghighCVSS 7.5EPSS 0.7%
- CVE-2026-55833: Netty resource exhaustion in SPDY header decodinghighCVSS 7.5EPSS 0.7%
- CVE-2026-55831: Netty resource exhaustion in SPDY SETTINGS decoderhighCVSS 7.5EPSS 0.7%
- CVE-2026-100656: Netty HttpServerCodec unbounded queue growth via HTTP/1.1 pipelininghighCVSS 7.5
- CVE-2026-100655: Netty netty-codec-http denial of service in SpdySessionHandlerhighCVSS 7.5
- CVE-2026-42584: Netty HttpClientCodec response desynchronizationhighCVSS 7.3EPSS 0.7%
- CVE-2026-56745: Netty memory leak in SpdyHttpDecoder leading to DoShighCVSS 4EPSS 0.6%
- CVE-2026-56746: Netty security bypass in CorsHandler origin evaluationmediumCVSS 6.5EPSS 0.4%
- CVE-2026-42580: Netty integer overflow in HTTP chunk size parsermediumCVSS 6.5EPSS 0.4%
Vulnerabilities per week
Nothing in the last four weeks, down from 3 vulnerabilities in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 1 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 3 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Netty-Codec-Http vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/netty-netty-codec-http)<a href="https://junglewise.ai/threats/technologies/netty-netty-codec-http"><img src="https://junglewise.ai/threats/technologies/netty-netty-codec-http/badge.svg" alt="Netty-Codec-Http vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/netty-netty-codec-http.json, and this page as text at https://junglewise.ai/threats/technologies/netty-netty-codec-http.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Netty-Codec-Http vulnerabilities", https://junglewise.ai/threats/technologies/netty-netty-codec-http, 9 November 2026.