Technology · Maven
io.netty:netty-codec-http (Maven) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 24 vulnerabilities in io.netty:netty-codec-http (Maven): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-59903, was published on 17 August 2026. Nothing was published in the last eight weeks.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About io.netty:netty-codec-http (Maven)
Netty codec module for HTTP protocol message encoding and decoding.
Latest io.netty:netty-codec-http (Maven) vulnerabilities
- 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-2026-41417: Netty CRLF injection in DefaultHttpRequest setUrimediumCVSS 5.3EPSS 0.3%
- CVE-2026-33870: Netty request smuggling via chunked extension quoted-string parsinghighCVSS 7.5EPSS 0.7%
- CVE-2025-67735: Netty has a CRLF Injection vulnerability in io.netty.handler.codec.http.HttpRequestEncodermediumCVSS 6.5EPSS 0.3%
- CVE-2025-58056: Netty vulnerable to request smuggling due to incorrect parsing of chunk extensionsinfoEPSS 0.7%
- CVE-2024-29025: Netty's HttpPostRequestDecoder can OOMlowCVSS 3.1EPSS 1.4%
- CVE-2022-41915: Netty vulnerable to HTTP Response splitting from assigning header value iteratorlowCVSS 3.1EPSS 0.9%
- CVE-2022-24823: Local Information Disclosure Vulnerability in io.netty:netty-codec-httplowCVSS 3.1EPSS 1.0%
- CVE-2021-43797: HTTP request smuggling in nettylowCVSS 3.1EPSS 2.7%
- CVE-2021-21290: Local Information Disclosure Vulnerability in Netty on Unix-Like systemslowCVSS 3.1EPSS 1.8%
- CVE-2019-20444: HTTP Request Smuggling in NettylowCVSS 3.1EPSS 8.9%
Most severe io.netty:netty-codec-http (Maven) 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-2026-42584: 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%
- CVE-2025-67735: Netty has a CRLF Injection vulnerability in io.netty.handler.codec.http.HttpRequestEncodermediumCVSS 6.5EPSS 0.3%
- CVE-2026-42585: Netty HTTP request smuggling via malformed Transfer-EncodingmediumCVSS 6.5EPSS 0.3%
Vulnerabilities per week
Nothing was published in the last eight weeks. 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 | 0 | 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 io.netty:netty-codec-http (Maven) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/io-netty-netty-codec-http)<a href="https://junglewise.ai/threats/technologies/io-netty-netty-codec-http"><img src="https://junglewise.ai/threats/technologies/io-netty-netty-codec-http/badge.svg" alt="io.netty:netty-codec-http (Maven) 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/io-netty-netty-codec-http.json, and this page as text at https://junglewise.ai/threats/technologies/io-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, "io.netty:netty-codec-http (Maven) vulnerabilities", https://junglewise.ai/threats/technologies/io-netty-netty-codec-http, 11 November 2026.