High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-10072
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:12 UTC · Revision 1
Source evidence
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.
osv:CVE-2019-10072
Complete source record
{
"id": "54b9d71c0c9300523d2a63038197e0b1aba0acbc62986e7916463b27793d92bd",
"url": "https://osv.dev/vulnerability/CVE-2019-10072",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-10072",
"summary": "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.",
"evidence": "osv:CVE-2019-10072",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-10072",
"aliases": [
"CVE-2019-10072",
"GHSA-q4hg-rmq2-52q9"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
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{
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{
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"versions": [
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-10072.json"
}
}
],
"modified": "2026-10-24T10:30:25.692448477Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a%40%3Cannounce.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E",
"https://support.f5.com/csp/article/K17321505",
"https://usn.ubuntu.com/4128-1/",
"https://usn.ubuntu.com/4128-2/",
"https://www.oracle.com/security-alerts/cpuApr2021.html",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://www.oracle.com/security-alerts/cpujan2020.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html",
"https://access.redhat.com/errata/RHSA-2019:3929",
"https://access.redhat.com/errata/RHSA-2019:3931",
"https://security.netapp.com/advisory/ntap-20190625-0002/",
"https://www.debian.org/security/2020/dsa-4680",
"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html",
"https://www.synology.com/security/advisory/Synology_SA_19_29"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-10072",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431425,
"published_at": "2019-06-21T18:15:09.513+00:00"
}