Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-17569
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:28 UTC · Revision 1
Source evidence
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.
osv:CVE-2019-17569
Complete source record
{
"id": "e1929cea42911d7a9b8ad167601d25ecdbe7c4190389bba7a66f8f46660818fa",
"url": "https://osv.dev/vulnerability/CVE-2019-17569",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-17569",
"summary": "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.",
"evidence": "osv:CVE-2019-17569",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-17569",
"aliases": [
"CVE-2019-17569",
"GHSA-767j-jfh2-jvrc"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/tomcat",
"type": "GIT",
"events": [
{
"introduced": "fde40d7e0c7a1b0b2423cb84ad220a5d98b65591"
},
{
"last_affected": "a94a0258f36d064aa032608a9e99c62018f22d94"
},
{
"introduced": "35174cb9cfa4cf3d608db77485043af42cf92c8c"
},
{
"last_affected": "c40ede65ea4fb44b1957ec482f28c7afa71f1b50"
},
{
"introduced": "7c14efedba0cc81319efacb0e7f5129804e7b6f9"
},
{
"last_affected": "4fab4cc012d0c31852e957d198cb0549f3d6074c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.98"
},
{
"last_affected": "7.0.99"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.5.48"
},
{
"last_affected": "8.5.50"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.28"
},
{
"last_affected": "9.0.30"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17569.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/apache/tomee",
"type": "GIT",
"events": [
{
"introduced": "24420829cd7de768df247fa7b3c8ae62c13a68e2"
},
{
"last_affected": "24420829cd7de768df247fa7b3c8ae62c13a68e2"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:tomee:7.0.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.7"
},
{
"last_affected": "7.0.7"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"7.0.7",
"tomee-7.0.7"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17569.json"
}
}
],
"modified": "2026-10-24T10:30:39.945883865Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E",
"https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E",
"https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E",
"https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html",
"https://security.netapp.com/advisory/ntap-20200327-0005/",
"https://www.debian.org/security/2020/dsa-4673",
"https://www.debian.org/security/2020/dsa-4680",
"https://www.oracle.com/security-alerts/cpujan2021.html",
"https://www.oracle.com/security-alerts/cpujul2020.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:*"
],
"vendor_product": "netapp:oncommand_system_manager",
"extracted_events": [
{
"range": [
{
"introduced": "3.0.0"
},
{
"last_affected": "3.1.3"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:instantis_enterprisetrack",
"extracted_events": [
{
"range": [
{
"introduced": "17.1"
},
{
"last_affected": "17.3"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:mysql_enterprise_monitor",
"extracted_events": [
{
"range": [
{
"last_affected": "4.0.12"
},
{
"introduced": "8.0.0"
},
{
"last_affected": "8.0.20"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:agile_engineering_data_management",
"extracted_events": [
{
"range": [
{
"introduced": "6.2.1.0"
},
{
"last_affected": "6.2.1.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:agile_product_lifecycle_management",
"extracted_events": [
{
"range": [
{
"introduced": "9.3.3"
},
{
"last_affected": "9.3.3"
},
{
"introduced": "9.3.5"
},
{
"last_affected": "9.3.5"
},
{
"introduced": "9.3.6"
},
{
"last_affected": "9.3.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_instant_messaging_server",
"extracted_events": [
{
"range": [
{
"introduced": "10.0.1.4.0"
},
{
"last_affected": "10.0.1.4.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1.2:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:health_sciences_empirica_inspections",
"extracted_events": [
{
"range": [
{
"introduced": "1.0.1.2"
},
{
"last_affected": "1.0.1.2"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:health_sciences_empirica_signal",
"extracted_events": [
{
"range": [
{
"introduced": "7.3.3"
},
{
"last_affected": "7.3.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:hospitality_guest_access",
"extracted_events": [
{
"range": [
{
"introduced": "4.2.0"
},
{
"last_affected": "4.2.0"
},
{
"introduced": "4.2.1"
},
{
"last_affected": "4.2.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:transportation_management",
"extracted_events": [
{
"range": [
{
"introduced": "6.3.7"
},
{
"last_affected": "6.3.7"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:workload_manager",
"extracted_events": [
{
"range": [
{
"introduced": "12.2.0.1"
},
{
"last_affected": "12.2.0.1"
},
{
"introduced": "18c"
},
{
"last_affected": "18c"
},
{
"introduced": "19c"
},
{
"last_affected": "19c"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-17569",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434788,
"published_at": "2020-02-24T22:15:11.903+00:00"
}