CVE-2019-0221: Apache Tomcat Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-jjpq-gp5q-8q6w
Share
CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2019-0221 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Apache Tomcat libraries in the Maven ecosystem. The issue involves cross-site scripting in apache tomcat. Remediation is available by upgrading affected packages to version 9.0.17, 8.5.40, 7.0.94.

CVE-2019-0221 at a Glance

CVE Identifier CVE-2019-0221
GHSA Identifier GHSA-jjpq-gp5q-8q6w
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Apache Tomcat
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2019-0221

To remediate this vulnerability, upgrade all affected Apache Tomcat dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.tomcat.embed:tomcat-embed-core fixed: 9.0.17 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>9.0.17</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 8.5.40 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>8.5.40</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 7.0.94 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>7.0.94</version>
</dependency>
org.apache.tomcat:tomcat-catalina fixed: 9.0.17 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-catalina</artifactId>
    <version>9.0.17</version>
</dependency>
org.apache.tomcat:tomcat-catalina fixed: 8.5.40 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-catalina</artifactId>
    <version>8.5.40</version>
</dependency>
org.apache.tomcat:tomcat-catalina fixed: 7.0.94 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-catalina</artifactId>
    <version>7.0.94</version>
</dependency>
org.apache.tomcat:tomcat fixed: 9.0.17 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat</artifactId>
    <version>9.0.17</version>
</dependency>
org.apache.tomcat:tomcat fixed: 8.5.40 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat</artifactId>
    <version>8.5.40</version>
</dependency>
org.apache.tomcat:tomcat fixed: 7.0.94 
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat</artifactId>
    <version>7.0.94</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.tomcat.embed

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-0221, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.tomcat.embed

Analyze the terminal output to locate any version of Apache Tomcat in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.0.17), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.tomcat.embed command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Apache Tomcat, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escaping and is, therefore, vulnerable to XSS. SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.

CVE-2019-0221 Affected Apache Tomcat Versions

9 component(s)
Fixed Versions:
9.0.178.5.407.0.94
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 9.0.0
< 9.0.17
9.0.17
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 8.5.0
< 8.5.40
8.5.40
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 7.0.0
< 7.0.94
7.0.94
org.apache.tomcat:tomcat-catalina
maven/org.apache.tomcat/tomcat-catalina
Maven
≥ 9.0.0
< 9.0.17
9.0.17
org.apache.tomcat:tomcat-catalina
maven/org.apache.tomcat/tomcat-catalina
Maven
≥ 8.5.0
< 8.5.40
8.5.40
org.apache.tomcat:tomcat-catalina
maven/org.apache.tomcat/tomcat-catalina
Maven
≥ 7.0.0
< 7.0.94
7.0.94
org.apache.tomcat:tomcat
maven/org.apache.tomcat/tomcat
Maven
≥ 9.0.0
< 9.0.17
9.0.17
org.apache.tomcat:tomcat
maven/org.apache.tomcat/tomcat
Maven
≥ 8.5.0
< 8.5.40
8.5.40
org.apache.tomcat:tomcat
maven/org.apache.tomcat/tomcat
Maven
≥ 7.0.0
< 7.0.94
7.0.94

References

usn.ubuntu.com/4128-1 WEB
https://usn.ubuntu.com/4128-1
usn.ubuntu.com/4128-2 WEB
https://usn.ubuntu.com/4128-2
Apache Tomcat Security Information SECURITY
https://www.debian.org/security/2019/dsa-4596
NVD — CVE-2019-0221 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-0221
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/15fcd166ea2c1bb79e8541b8e1a43da9c452ceea
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/44ec74c44dcd05cd7e90967c04d40b51440ecd7e
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/4fcdf706f3ecf35912a600242f89637f5acb32da
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQTZ5BJ5F4KV6N53SGNKSW3UY5DBIQ46
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NPHQEL5AQ6LZSZD2Y6TYZ4RC3WI7NXJ3
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQTZ5BJ5F4KV6N53SGNKSW3UY5DBIQ46
seclists.org/bugtraq/2019/dec/43 WEB
https://seclists.org/bugtraq/2019/Dec/43
Apache Tomcat Security Information SECURITY
https://security.gentoo.org/glsa/202003-43
Apache Tomcat Security Information SECURITY
https://security.netapp.com/advisory/ntap-20190606-0001
support.f5.com/csp/article/k131841... WEB
https://support.f5.com/csp/article/K13184144?utm_source=f5support&amp%3Butm_medium=RSS
support.f5.com/csp/article/k131841... WEB
https://support.f5.com/csp/article/K13184144?utm_source=f5support&amp;utm_medium=RSS
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-7.html
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-8.html
Apache Tomcat Security Information SECURITY
https://tomcat.apache.org/security-9.html
Apache Tomcat Security Information SECURITY
https://web.archive.org/web/20200227055048/http://www.securityfocus.com/bid/108545
Apache Tomcat Security Information SECURITY
https://www.oracle.com/security-alerts/cpuApr2021.html
Apache Tomcat Security Information SECURITY
https://www.oracle.com/security-alerts/cpuapr2020.html
Apache Tomcat Security Information SECURITY
https://www.oracle.com/security-alerts/cpujan2020.html
Apache Tomcat Security Information SECURITY
https://wwws.nightwatchcybersecurity.com/2019/05/27/xss-in-ssi-printenv-command-apache-tomcat-cve-2019-0221
access.redhat.com/errata/rhsa-2019:39... WEB
https://access.redhat.com/errata/RHSA-2019:3929
access.redhat.com/errata/rhsa-2019:39... WEB
https://access.redhat.com/errata/RHSA-2019:3931
Apache Tomcat Source Repository REPOSITORY
https://github.com/apache/tomcat
lists.apache.org/thread.html/6e6e9ea... WEB
https://lists.apache.org/thread.html/6e6e9eacf7b28fd63d249711e9d3ccd4e0a83f556e324aee37be5a8c%40%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/6e6e9ea... WEB
https://lists.apache.org/thread.html/6e6e9eacf7b28fd63d249711e9d3ccd4e0a83f556e324aee37be5a8c@%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/r3bbb80... WEB
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r3bbb80... WEB
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r48c144... WEB
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r48c144... WEB
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r6ccee4... WEB
https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r6ccee4... WEB
https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r6d03e4... WEB
https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E
lists.apache.org/thread.html/r6d03e4... WEB
https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c@%3Cannounce.apache.org%3E
lists.apache.org/thread.html/r9136ff... WEB
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r9136ff... WEB
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fa... WEB
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fa... WEB
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/05/msg00044.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/08/msg00015.html
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NPHQEL5AQ6LZSZD2Y6TYZ4RC3WI7NXJ3
Apache Tomcat Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00090.html
Apache Tomcat Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00054.html
Apache Tomcat Security Information SECURITY
http://packetstormsecurity.com/files/163457/Apache-Tomcat-9.0.0.M1-Cross-Site-Scripting.html
seclists.org/fulldisclosure/2019... WEB
http://seclists.org/fulldisclosure/2019/May/50

Frequently Asked Questions

What is CVE-2019-0221?
CVE-2019-0221 is a security vulnerability in Apache Tomcat involving Cross-site scripting in Apache Tomcat under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Apache Tomcat versions are affected?
Affected versions include releases prior to 9.0.17, 8.5.40, 7.0.94 across affected packages: org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat-catalina, org.apache.tomcat:tomcat.
What version fixes CVE-2019-0221?
Upgrading to 9.0.17, 8.5.40, 7.0.94 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tomcat-embed-core affected?
Yes, org.apache.tomcat.embed:tomcat-embed-core is affected in releases prior to 9.0.17, 8.5.40, 7.0.94. Upgrade your dependency to 9.0.17, 8.5.40, 7.0.94 or later.
Is tomcat-catalina affected?
Yes, org.apache.tomcat:tomcat-catalina is affected in releases prior to 9.0.17, 8.5.40, 7.0.94. Upgrade your dependency to 9.0.17, 8.5.40, 7.0.94 or later.
What is the CVSS score of CVE-2019-0221?
CVE-2019-0221 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2019-0221?
CVE-2019-0221 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2019-0221?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.tomcat.embed'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jjpq-gp5q-8q6w",
  "modified" : "2026-06-18T20:17:35Z",
  "published" : "2019-05-30T03:30:42Z",
  "aliases" : [ "CVE-2019-0221" ],
  "summary" : "Cross-site scripting in Apache Tomcat",
  "details" : "The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escaping and is, therefore, vulnerable to XSS. SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5.0"
      }, {
        "fixed" : "8.5.40"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
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      "events" : [ {
        "introduced" : "7.0.0"
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      } ]
    } ]
  }, {
    "package" : {
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      "name" : "org.apache.tomcat:tomcat-catalina"
    },
    "ranges" : [ {
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      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat-catalina"
    },
    "ranges" : [ {
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        "fixed" : "8.5.40"
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    } ]
  }, {
    "package" : {
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      "name" : "org.apache.tomcat:tomcat-catalina"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.94"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5.0"
      }, {
        "fixed" : "8.5.40"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat:tomcat"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.94"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-0221"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/15fcd166ea2c1bb79e8541b8e1a43da9c452ceea"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/44ec74c44dcd05cd7e90967c04d40b51440ecd7e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat/commit/4fcdf706f3ecf35912a600242f89637f5acb32da"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQTZ5BJ5F4KV6N53SGNKSW3UY5DBIQ46"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NPHQEL5AQ6LZSZD2Y6TYZ4RC3WI7NXJ3"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQTZ5BJ5F4KV6N53SGNKSW3UY5DBIQ46"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/bugtraq/2019/Dec/43"
  }, {
    "type" : "WEB",
    "url" : "https://security.gentoo.org/glsa/202003-43"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20190606-0001"
  }, {
    "type" : "WEB",
    "url" : "https://support.f5.com/csp/article/K13184144?utm_source=f5support&amp%3Butm_medium=RSS"
  }, {
    "type" : "WEB",
    "url" : "https://support.f5.com/csp/article/K13184144?utm_source=f5support&amp;utm_medium=RSS"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-7.html"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-8.html"
  }, {
    "type" : "WEB",
    "url" : "https://tomcat.apache.org/security-9.html"
  }, {
    "type" : "WEB",
    "url" : "https://usn.ubuntu.com/4128-1"
  }, {
    "type" : "WEB",
    "url" : "https://usn.ubuntu.com/4128-2"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200227055048/http://www.securityfocus.com/bid/108545"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4596"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuApr2021.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuapr2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpujan2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://wwws.nightwatchcybersecurity.com/2019/05/27/xss-in-ssi-printenv-command-apache-tomcat-cve-2019-0221"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2019:3929"
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  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/05/msg00044.html"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2019/08/msg00015.html"
  }, {
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  }, {
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  }, {
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    "url" : "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00054.html"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/163457/Apache-Tomcat-9.0.0.M1-Cross-Site-Scripting.html"
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  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-05-30T03:30:07Z",
    "nvd_published_at" : "2019-05-28T22:29:00Z"
  }
}