Disclosure summary
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
Source-reported weakness categories
CWE-444
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2019-16869
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| netty | netty | * {"versionEndExcluding":"4.1.42"} |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| debian | debian_linux | 10.0 |
| canonical | ubuntu_linux | 18.04 |
| redhat | jboss_enterprise_application_platform | 7.2 |
| redhat | jboss_enterprise_application_platform | 7.3 |
| redhat | jboss_enterprise_application_platform | 7.4 |
Original records & references
- NIST NVD record
- CVE Program record
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- access.redhat.com — Third Party Advisory
- github.com — Patch, Third Party Advisory
- github.com — Exploit, Issue Tracking, Patch, Third Party Advisory
- github.com
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
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- lists.apache.org
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- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
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- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.apache.org
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- seclists.org — Issue Tracking, Mailing List, Third Party Advisory
- usn.ubuntu.com — Third Party Advisory
PUBLISHED 2019-09-26T12:15:11-04:00
MODIFIED 2026-10-08T18:16:50-04:00
INGESTED 2026-10-10T20:50:18-04:00