WaratekVRT Sign in

CVE-2019-17569 Apache Tomcat

Affected softwareApache Tomcat
Severity4.8 Medium CVSS 3.1 2 scores
Fixed in7.0.100, 8.5.51, 9.0.31
WeaknessCWE-444
Published24 Feb 2020
Updated25 Aug 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 8.9% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

4.8 MEDIUM v3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 4.8 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N NVD Primary published
CVSS 2.0 5.8 none AV:N/AC:M/Au:N/C:P/I:P/A:N NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update July 2020 ↗ CPU 2020-Q3 Oracle Database Server / Workload Manager (Apache Tomcat) (12.2.0.1, 18c, 19c)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Database Server Workload Manager (Apache Tomcat) 12.2.0.1, 18c, 19c 12.2.0.1 · 18 · 19

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.tomcat.embed:tomcat-embed-core 7.0.98 7.0.100 unbounded
org.apache.tomcat.embed:tomcat-embed-core 8.5.48 8.5.51 unbounded
org.apache.tomcat.embed:tomcat-embed-core 9.0.28 9.0.31 unbounded
org.apache.tomcat:tomcat 7.0.98 7.0.100 unbounded
org.apache.tomcat:tomcat 8.5.48 8.5.51 unbounded
org.apache.tomcat:tomcat 9.0.28 9.0.31 unbounded

Products and versions

18 products, 31 version entries
SourceVendorProductSchemeAffected versions
nvd apache tomcat generic ≥ 7.0.98 and ≤ 7.0.99 · ≥ 8.5.48 and ≤ 8.5.50 · ≥ 9.0.28 and ≤ 9.0.30
nvd apache tomee generic 7.0.7
nvd debian debian linux generic 9.0 · 10.0
nvd netapp data availability services generic any version
nvd netapp oncommand system manager generic ≥ 3.0.0 and ≤ 3.1.3
nvd opensuse leap generic 15.1
nvd oracle agile engineering data management generic 6.2.1.0
nvd oracle agile product lifecycle management generic 9.3.3 · 9.3.5 · 9.3.6
nvd oracle communications instant messaging server generic 10.0.1.4.0
nvd oracle health sciences empirica inspections generic 1.0.1.2
nvd oracle health sciences empirica signal generic 7.3.3
nvd oracle hospitality guest access generic 4.2.0 · 4.2.1
nvd oracle instantis enterprisetrack generic ≥ 17.1 and ≤ 17.3
nvd oracle mysql enterprise monitor generic ≤ 4.0.12 · ≥ 8.0.0 and ≤ 8.0.20
nvd oracle transportation management generic 6.3.7
nvd oracle workload manager generic 12.2.0.1 · 18c · 19c
osv org.apache.tomcat tomcat generic ≥ 7.0.98 and < 7.0.100 · ≥ 8.5.48 and < 8.5.51 · ≥ 9.0.28 and < 9.0.31
osv org.apache.tomcat.embed tomcat-embed-core generic ≥ 7.0.98 and < 7.0.100 · ≥ 8.5.48 and < 8.5.51 · ≥ 9.0.28 and < 9.0.31

Earlier manual review

A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** HTTP, NO AUTH REMOTE EXPLOIT **Products:** ORACLE DATABASE SERVER, TOMCAT, WORKLOAD MANAGER (APACHE TOMCAT)

References

URLTags
https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E WEB
https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E WEB
https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E WEB
https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html WEB
https://security.netapp.com/advisory/ntap-20200327-0005 WEB
https://www.debian.org/security/2020/dsa-4673 WEB
https://www.debian.org/security/2020/dsa-4680 WEB
https://www.oracle.com/security-alerts/cpujan2021.html WEB
https://www.oracle.com/security-alerts/cpujul2020.html WEB
https://www.oracle.com/security-alerts/cpuoct2020.html WEB

Timeline

Published2020-02-24By the CVE Program.
NVD record modified2026-08-25NVD's own last-modified date for this record.