Technology · Maven
org.jboss.netty:netty (Maven) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 9 vulnerabilities in org.jboss.netty:netty (Maven): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-43797, was published on 9 December 2021.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About org.jboss.netty:netty (Maven)
A Java NIO client server framework which enables quick and easy development of network applications.
Latest org.jboss.netty:netty (Maven) vulnerabilities
- CVE-2021-43797: HTTP request smuggling in nettylowCVSS 3.1EPSS 2.7%
- CVE-2021-37137: SnappyFrameDecoder doesn't restrict chunk length any may buffer skippable chunks in an unnecessary waylowCVSS 3.1EPSS 6.8%
- CVE-2021-37136: Bzip2Decoder doesn't allow setting size restrictions for decompressed datalowCVSS 3.1EPSS 5.9%
- CVE-2021-21409: Possible request smuggling in HTTP/2 due missing validation of content-lengthlowCVSS 3.1EPSS 4.9%
- CVE-2021-21295: Possible request smuggling in HTTP/2 due missing validationlowCVSS 3.1EPSS 18.9%
- 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%
- CVE-2019-20445: HTTP Request Smuggling in NettyinfoEPSS 13.5%
- CVE-2019-16869: Netty HTTP request smuggling via header whitespace mishandlinghighCVSS 7.5EPSS 8.4%
Most severe org.jboss.netty:netty (Maven) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2019-16869: Netty HTTP request smuggling via header whitespace mishandlinghighCVSS 7.5EPSS 8.4%
- CVE-2021-21295: Possible request smuggling in HTTP/2 due missing validationlowCVSS 3.1EPSS 18.9%
- CVE-2019-20444: HTTP Request Smuggling in NettylowCVSS 3.1EPSS 8.9%
- CVE-2021-37137: SnappyFrameDecoder doesn't restrict chunk length any may buffer skippable chunks in an unnecessary waylowCVSS 3.1EPSS 6.8%
- CVE-2021-37136: Bzip2Decoder doesn't allow setting size restrictions for decompressed datalowCVSS 3.1EPSS 5.9%
- CVE-2021-21409: Possible request smuggling in HTTP/2 due missing validation of content-lengthlowCVSS 3.1EPSS 4.9%
- 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-2019-20445: HTTP Request Smuggling in NettyinfoEPSS 13.5%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 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 |
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/org-jboss-netty-netty.json, 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, "org.jboss.netty:netty (Maven) vulnerabilities", https://junglewise.ai/threats/technologies/org-jboss-netty-netty, 28 September 2026.