---
title: "CVE-2019-10072: Apache Tomcat vulnerability | CubePath"
description: "The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19…"
language: en
source: https://cubepath.com/security/cve/CVE-2019-10072
---

# CVE-2019-10072: Apache Tomcat vulnerability | CubePath

## Description

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW\_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-10072)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.72988 (73.0% probability)

Percentile

99.5%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Nov 2, 2026

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

no

Technical impact

partial

## Affected products

Products listed in the CVE record, as the CNA published them.

- Apache Tomcat

  - affected: Apache Tomcat 9.0.0.M1 to 9.0.19, 8.5.0 to 8.5.40

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [108874](http://www.securityfocus.com/bid/108874)  (securityfocus.com) vdb-entry
- [USN-4128-1](https://usn.ubuntu.com/4128-1/)  (usn.ubuntu.com) vendor-advisory
- [USN-4128-2](https://usn.ubuntu.com/4128-2/)  (usn.ubuntu.com) vendor-advisory
- [RHSA-2019:3929](https://access.redhat.com/errata/RHSA-2019:3929)  (access.redhat.com) vendor-advisory
- [RHSA-2019:3931](https://access.redhat.com/errata/RHSA-2019:3931)  (access.redhat.com) vendor-advisory
- [openSUSE-SU-2020:0038](http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html)  (lists.opensuse.org) vendor-advisory
- [\[tomcat-dev\] 20200203 svn commit: r1873527 \[24/30\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E)  (lists.apache.org) mailing-list
- [\[tomcat-dev\] 20200203 svn commit: r1873527 \[25/30\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E)  (lists.apache.org) mailing-list
- [\[tomcat-dev\] 20200213 svn commit: r1873980 \[28/34\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E)  (lists.apache.org) mailing-list
- [\[tomcat-dev\] 20200213 svn commit: r1873980 \[29/34\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E)  (lists.apache.org) mailing-list
- [DSA-4680](https://www.debian.org/security/2020/dsa-4680)  (debian.org) vendor-advisory
- [oracle.com/security-alerts/cpuapr2020.html](https://www.oracle.com/security-alerts/cpuapr2020.html)
- [oracle.com/technetwork/security-advisory/cpuoct2019-5072832…](https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html)
- [oracle.com/security-alerts/cpujan2020.html](https://www.oracle.com/security-alerts/cpujan2020.html)
- [oracle.com/security-alerts/cpuoct2020.html](https://www.oracle.com/security-alerts/cpuoct2020.html)
- [lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7…](https://lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a%40%3Cannounce.tomcat.apache.org%3E)
- [synology.com/security/advisory/Synology\_SA\_19\_29](https://www.synology.com/security/advisory/Synology%5FSA%5F19%5F29)
- [security.netapp.com/advisory/ntap-20190625-0002](https://security.netapp.com/advisory/ntap-20190625-0002/)
- [support.f5.com/csp/article/K17321505](https://support.f5.com/csp/article/K17321505)
- [oracle.com/security-alerts/cpuApr2021.html](https://www.oracle.com/security-alerts/cpuApr2021.html)

## Timeline

1. ID reserved Mar 26, 2019
2. Record published Jun 21, 2019
3. Record last updated Nov 2, 2026

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## About CubePath

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:00 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)