CVE-2026-50020
1 advisory.
Maven/io.netty:netty-codec-http CVE-2026-50020: medium 5.3
Netty: HttpObjectDecoder skips arbitrary initial control characters when only initial CRLF characters are permitted
Action: Upgrade io.netty:netty-codec-http to 4.1.135.Final (4.1.x) or 4.2.15.Final (4.2.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 4.2.0.Final | 4.2.15.Final | - |
| 0 | 4.1.135.Final | - |
Fixed versions
| 4.2.15.Final | 4.1.135.Final |
Sources
- osv: GHSA-hvcg-qmg6-jm4c
- https://github.com/netty/netty/security/advisories/GHSA-hvcg-qmg6-jm4c
- https://nvd.nist.gov/vuln/detail/CVE-2026-50020
- https://github.com/netty/netty
- https://github.com/netty/netty/releases/tag/netty-4.1.135.Final
- https://github.com/netty/netty/releases/tag/netty-4.2.15.Final
CVE-2026-50020 · published · modified · JSON