Technology · Maven
io.netty:netty-codec (Maven) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 5 vulnerabilities in io.netty:netty-codec (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-2026-59901, was published on 29 July 2026.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About io.netty:netty-codec (Maven)
The core Netty library for encoding and decoding network protocols.
Latest io.netty:netty-codec (Maven) vulnerabilities
- CVE-2026-59901: Netty Bzip2Decoder infinite loop denial of servicehighCVSS 4EPSS 0.5%
- CVE-2026-42583: Netty Lz4FrameDecoder resource exhaustionhighCVSS 7.5EPSS 0.5%
- CVE-2025-58057: Netty's decoders vulnerable to DoS via zip bomb style attackmediumCVSS 4EPSS 0.6%
- 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%
Most severe io.netty:netty-codec (Maven) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-42583: Netty Lz4FrameDecoder resource exhaustionhighCVSS 7.5EPSS 0.5%
- CVE-2026-59901: Netty Bzip2Decoder infinite loop denial of servicehighCVSS 4EPSS 0.5%
- CVE-2025-58057: Netty's decoders vulnerable to DoS via zip bomb style attackmediumCVSS 4EPSS 0.6%
- 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%
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 | 1 | 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/io-netty-netty-codec.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, "io.netty:netty-codec (Maven) vulnerabilities", https://junglewise.ai/threats/technologies/io-netty-netty-codec, 28 September 2026.