High
Security advisory
When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-17563
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:16 UTC · Revision 1
Source evidence
When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.
osv:CVE-2019-17563
Complete source record
{
"id": "fd699550429add89a9b0d5a129d69ffdf0638d06024eb757f549d388f0fe7e54",
"url": "https://osv.dev/vulnerability/CVE-2019-17563",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-17563",
"summary": "When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.",
"evidence": "osv:CVE-2019-17563",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-17563",
"aliases": [
"CVE-2019-17563",
"GHSA-9xcj-c8cr-8c3c"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/tomcat",
"type": "GIT",
"events": [
{
"introduced": "e498667bd7811e846771a852b16ce9f1e524b81b"
},
{
"last_affected": "fde40d7e0c7a1b0b2423cb84ad220a5d98b65591"
},
{
"introduced": "e37b977db6f47e4380ad67114a49e8568951c953"
},
{
"last_affected": "e0c759f3bd47e06b9d526ed40ed9d1e923f464b6"
},
{
"introduced": "16bf392c67833ad549733b58c350ff92b5ee782a"
},
{
"last_affected": "d628ee1e6e1121d60b4990239c242d0e18a25e42"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"last_affected": "7.0.98"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.5.0"
},
{
"last_affected": "8.5.49"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0"
},
{
"last_affected": "9.0.29"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17563.json"
}
}
],
"modified": "2026-10-24T10:30:26.477990102Z",
"provider": "osv",
"references": [
"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/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E",
"https://lists.apache.org/thread.html/reb9a66f176df29b9a832caa95ebd9ffa3284e8f4922ec4fa3ad8eb2e%40%3Cissues.cxf.apache.org%3E",
"https://lists.apache.org/thread.html/8b4c1db8300117b28a0f3f743c0b9e3f964687a690cdf9662a884bbd%40%3Cannounce.tomcat.apache.org%3E",
"https://lists.debian.org/debian-lts-announce/2020/01/msg00024.html",
"https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html",
"https://seclists.org/bugtraq/2019/Dec/43",
"https://security.gentoo.org/glsa/202003-43",
"https://security.netapp.com/advisory/ntap-20200107-0001/",
"https://usn.ubuntu.com/4251-1/",
"https://www.debian.org/security/2019/dsa-4596",
"https://www.debian.org/security/2020/dsa-4680",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://www.oracle.com/security-alerts/cpujan2021.html",
"https://www.oracle.com/security-alerts/cpujul2020.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"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": "4.0.11.5331"
},
{
"introduced": "8.0.0"
},
{
"last_affected": "8.0.18.1217"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"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:hyperion_infrastructure_technology:11.1.2.4:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:hyperion_infrastructure_technology",
"extracted_events": [
{
"range": [
{
"introduced": "11.1.2.4"
},
{
"last_affected": "11.1.2.4"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:micros_relate_crm_software:11.4:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:micros_relate_crm_software",
"extracted_events": [
{
"range": [
{
"introduced": "11.4"
},
{
"last_affected": "11.4"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:retail_order_broker:15.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:retail_order_broker",
"extracted_events": [
{
"range": [
{
"introduced": "15.0"
},
{
"last_affected": "15.0"
}
],
"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"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-17563",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431624,
"published_at": "2019-12-23T17:15:11.803+00:00"
}