CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2020-7238
High (7.5). EPSS 3.6% chance of exploitation in the next 30 days. Fixed in io.netty:netty-handler 4.1.45.
Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.
Severity
- EPSS
- 3.6% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
- CWE
- CWE-444
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- netty:netty
- redhat:jboss_enterprise_application_platform
- redhat:jboss_enterprise_application_platform_text-only_advisories
- redhat:openshift_application_runtimes_text-only_advisories
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-ff2w-cq2g-wv5f | Maven | io.netty:netty-handler | >=4.1.43 <4.1.45 | 4.1.45 |