CVE-2019-10072
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 for the CVE license. View the record on cve.org
Key data
EPSS
- 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
- Automatable
- no
- Technical impact
- partial
Affected products
Apache Tomcat
- affected: Apache Tomcat 9.0.0.M1 to 9.0.19, 8.5.0 to 8.5.40
References
- 108874 (securityfocus.com)vdb-entry
- USN-4128-1 (usn.ubuntu.com)vendor-advisory
- USN-4128-2 (usn.ubuntu.com)vendor-advisory
- RHSA-2019:3929 (access.redhat.com)vendor-advisory
- RHSA-2019:3931 (access.redhat.com)vendor-advisory
- openSUSE-SU-2020:0038 (lists.opensuse.org)vendor-advisory
- [tomcat-dev] 20200203 svn commit: r1873527 [24/30] - /tomcat/site/trunk/docs/ (lists.apache.org)mailing-list
- [tomcat-dev] 20200203 svn commit: r1873527 [25/30] - /tomcat/site/trunk/docs/ (lists.apache.org)mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [28/34] - /tomcat/site/trunk/docs/ (lists.apache.org)mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [29/34] - /tomcat/site/trunk/docs/ (lists.apache.org)mailing-list
- DSA-4680 (debian.org)vendor-advisory
- oracle.com/security-alerts/cpuapr2020.html
- oracle.com/technetwork/security-advisory/cpuoct2019-5072832…
- oracle.com/security-alerts/cpujan2020.html
- oracle.com/security-alerts/cpuoct2020.html
- lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7…
- synology.com/security/advisory/Synology_SA_19_29
- security.netapp.com/advisory/ntap-20190625-0002
- support.f5.com/csp/article/K17321505
- oracle.com/security-alerts/cpuApr2021.html
Timeline
- ID reserved
- Record published
- Record last updated
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About CubePath
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, 19:48 UTC. Sources and licenses