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Vulnerability details: VCID-3697-mkb9-e3fh
Vulnerability ID VCID-3697-mkb9-e3fh
Aliases CVE-2019-17569
GHSA-767j-jfh2-jvrc
Summary Potential HTTP request smuggling in Apache Tomcat The refactoring present in Apache Tomcat versions 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-707 Improper Neutralization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 4.8 http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
generic_textual MODERATE http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-17569.json
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.08139 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
epss 0.11369 https://api.first.org/data/v1/epss?cve=CVE-2019-17569
apache_tomcat Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17569
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-767j-jfh2-jvrc
cvssv3.1 4.8 https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
cvssv3.1 4.8 https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
cvssv3.1 4.8 https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
cvssv3.1 4.8 https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2019-17569
cvssv3.1 4.8 https://nvd.nist.gov/vuln/detail/CVE-2019-17569
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2019-17569
cvssv3.1 4.8 https://security.netapp.com/advisory/ntap-20200327-0005
generic_textual MODERATE https://security.netapp.com/advisory/ntap-20200327-0005
cvssv3.1 4.8 https://www.debian.org/security/2020/dsa-4673
generic_textual MODERATE https://www.debian.org/security/2020/dsa-4673
cvssv3.1 4.8 https://www.debian.org/security/2020/dsa-4680
generic_textual MODERATE https://www.debian.org/security/2020/dsa-4680
cvssv3.1 4.8 https://www.oracle.com/security-alerts/cpujan2021.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpujan2021.html
cvssv3.1 4.8 https://www.oracle.com/security-alerts/cpujul2020.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpujul2020.html
cvssv3.1 4.8 https://www.oracle.com/security-alerts/cpuoct2020.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpuoct2020.html
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-17569.json
https://api.first.org/data/v1/epss?cve=CVE-2019-17569
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10072
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12418
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17563
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17569
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1935
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1938
https://github.com/apache/tomcat/commit/060ecc5eb839208687b7fcc9e35287ac8eb46998
https://github.com/apache/tomcat/commit/959f1dfd767bf3cb64776b44f7395d1d8d8f7ab3
https://github.com/apache/tomcat/commit/b191a0d9cf06f4e04257c221bfe41d2b108a9cc8
https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E
https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
https://nvd.nist.gov/vuln/detail/CVE-2019-17569
https://security.netapp.com/advisory/ntap-20200327-0005
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
1806849 https://bugzilla.redhat.com/show_bug.cgi?id=1806849
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomee:7.0.7:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:tomee:7.0.7:*:*:*:*:*:*:*
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:agile_plm:9.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:*:*
cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:*
cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
GHSA-767j-jfh2-jvrc https://github.com/advisories/GHSA-767j-jfh2-jvrc
RHSA-2020:1520 https://access.redhat.com/errata/RHSA-2020:1520
RHSA-2020:1521 https://access.redhat.com/errata/RHSA-2020:1521
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-17569.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-17569
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-17569
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://security.netapp.com/advisory/ntap-20200327-0005
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.debian.org/security/2020/dsa-4673
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.debian.org/security/2020/dsa-4680
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.oracle.com/security-alerts/cpujan2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.oracle.com/security-alerts/cpujul2020.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.oracle.com/security-alerts/cpuoct2020.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.91751
EPSS Score 0.08139
Published At July 4, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:16:59.287219+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/02/GHSA-767j-jfh2-jvrc/GHSA-767j-jfh2-jvrc.json 36.1.3