CVE-2019-16869 - CVE House
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Status published High CVE-2019-16869

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

netty, debian linux, ubuntu linux, jboss enterprise application platform
Vulnerable Versions:
0, 8.0, 9.0, 10.0, 18.04, 7.2, 7.3, 7.4

Timeline

Official Publish: September 26th, 2019
Last Modified: July 7th, 2025
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.