AUGUST 4, 2026
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Case File

CVE-2019-17569

MEDIUM · CVSS 4.8 EPSS 8.87%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-02-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.8. It affects Apache.

CVE
CVE-2019-17569
Severity
MEDIUM
CVSS
4.8
EPSS
8.87%
Apache

Original NVD Description

The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

Related CVEs

Other vulnerabilities affecting the same vendor(s)