Description
If an async request was completed by the application at the same time as the container triggered the async timeout, a race condition existed that could result in a user seeing a response intended for a different user. An additional issue was present in the NIO and NIO2 connectors that did not correctly track the closure of the connection when an async request was completed by the application and timed out by the container at the same time. This could also result in a user seeing a response intended for another user. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.9 and 8.5.5 to 8.5.31.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 9.0.0.M9 to 9.0.9, 8.5.5 to 8.5.31 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | tomcat8 | 8.5.14-1+deb9u3 | DSA-4281-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | tomcat8 | 8.5.39-1ubuntu1~18.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | apache-commons-collections | 3.2.2-10.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | apache-commons-lang | 2.6-21.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | bea-stax +1 | 1.2.0-16.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | glassfish-fastinfoset | 1.2.13-9.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | glassfish-jaxb +3 | 2.2.11-11.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | glassfish-jaxb-api | 2.2.12-8.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | jackson-core +4 | 2.9.8-1.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | jackson-module-jaxb-annotations | 2.7.6-4.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | jakarta-commons-httpclient | 1:3.1-28.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | javassist +1 | 3.18.1-8.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | pki-servlet-4.0-api +1 | 1:9.0.7-14.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | python-nss +2 | 1.0.1-10.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | relaxngDatatype | 2011.1-7.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | resteasy | 3.0.26-3.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | slf4j +1 | 1.7.25-4.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | stax-ex | 1.7.7-8.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | velocity | 1.7-24.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xalan-j2 | 2.7.1-38.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xerces-j2 | 2.11.0-34.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xml-commons-apis | 1.4.01-25.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xml-commons-resolver | 1.2-26.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xmlstreambuffer | 1.5.4-8.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
| RHEL 8 | xsom | 0-19.20110809svn.module+el8.0.0+3248+9d514f3b | RHSA-2019:1529 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 5 | jws5-tomcat +10 | 9.0.7-12.redhat_12.1.el6jws | RHSA-2018:2868 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | apache-commons-collections | 3.2.2-10.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | apache-commons-lang | 2.6-21.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | bea-stax-api | 1.2.0-16.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | glassfish-fastinfoset | 1.2.13-9.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | glassfish-jaxb-api | 2.2.12-8.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | glassfish-jaxb-core +2 | 2.2.11-11.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | jackson-module-jaxb-annotations | 2.7.6-4.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | jakarta-commons-httpclient | 1:3.1-28.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | javassist +1 | 3.18.1-8.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | python3-nss +1 | 1.0.1-10.module_el8.5.0+150+5f0dbea0.alma | ALSA-2019:1529 |
| AlmaLinux 8 | relaxngDatatype | 2011.1-7.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | slf4j | 1.7.25-4.module_el8.5.0+2577+9e95fe00 | ALSA-2019:1529 |
| AlmaLinux 8 | slf4j-jdk14 | 1.7.25-4.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | stax-ex | 1.7.7-8.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | velocity | 1.7-24.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xalan-j2 | 2.7.1-38.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xerces-j2 | 2.11.0-34.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xml-commons-apis | 1.4.01-25.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xml-commons-resolver | 1.2-26.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xmlstreambuffer | 1.5.4-8.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
| AlmaLinux 8 | xsom | 0-19.20110809svn.module_el8.5.0+150+5f0dbea0 | ALSA-2019:1529 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | apache-commons-collections | 3.2.2-10.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | apache-commons-lang | 2.6-21.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | bea-stax | 1.2.0-16.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | glassfish-fastinfoset | 1.2.13-9.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | glassfish-jaxb | 2.2.11-11.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | glassfish-jaxb-api | 2.2.12-8.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | jackson-module-jaxb-annotations | 2.7.6-4.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | jakarta-commons-httpclient | 1:3.1-28.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | javassist | 3.18.1-8.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | python-nss | 1.0.1-10.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | relaxngDatatype | 2011.1-7.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | resteasy | 3.0.26-3.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | slf4j | 1.7.25-4.module+el8.3.0+74+855e3f5d | RLSA-2019:1529 |
| Rocky Linux 8 | stax-ex | 1.7.7-8.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | velocity | 1.7-24.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xalan-j2 | 2.7.1-38.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xerces-j2 | 2.11.0-34.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xml-commons-apis | 1.4.01-25.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xml-commons-resolver | 1.2-26.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xmlstreambuffer | 1.5.4-8.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
| Rocky Linux 8 | xsom | 0-19.20110809svn.module+el8.3.0+53+ea062990 | RLSA-2019:1529 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | tomcat | 9.0.10-3.7.1 | SUSE-SU-2018:3011-1 |
| SLES 12 SP3 | tomcat | 8.0.53-29.13.1 | SUSE-SU-2018:2699-1 |
| SLES 12 SP1 | tomcat | 8.0.53-10.35.1 | SUSE-SU-2018:3388-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | tomcat | 8.0.53-29.13.1 | SUSE-SU-2018:2699-1 |
| SLES for SAP 12 SP1 | tomcat | 8.0.53-10.35.1 | SUSE-SU-2018:3388-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tomcat | 9.0.36-8.4 | openSUSE-SU-2024:11468-1 |
| openSUSE Tumbleweed | tomcat10 | 10.1.14-1.1 | openSUSE-SU-2024:13441-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | apache-commons-collections | 3.2.2-10.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | apache-commons-lang | 2.6-21.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | bea-stax-api | 1.2.0-16.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | glassfish-fastinfoset | 1.2.13-9.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | glassfish-jaxb-api | 2.2.12-8.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | glassfish-jaxb-core +2 | 2.2.11-11.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | jackson-core +4 | 2.9.8-1.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | jackson-module-jaxb-annotations | 2.7.6-4.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | jakarta-commons-httpclient | 1:3.1-28.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | javassist +1 | 3.18.1-8.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | pki-servlet-4.0-api +1 | 1:9.0.7-14.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | python3-nss +1 | 1.0.1-10.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | relaxngDatatype | 2011.1-7.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | resteasy | 3.0.26-3.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | slf4j +1 | 1.7.25-4.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | stax-ex | 1.7.7-8.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | velocity | 1.7-24.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xalan-j2 | 2.7.1-38.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xerces-j2 | 2.11.0-34.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xml-commons-apis | 1.4.01-25.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xml-commons-resolver | 1.2-26.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xmlstreambuffer | 1.5.4-8.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
| Oracle Linux 8 | xsom | 0-19.20110809svn.module+el8.0.0+5231+3e842911 | ELSA-2019-1529 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >= 9.0.0.M9, < 9.0.10 | 9.0.10 | GHSA-6v52-mj5r-7j2m |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >= 8.5.5, < 8.5.32 | 8.5.32 | GHSA-6v52-mj5r-7j2m |
Advisories 13
- ALSA-2019:1529 Important: pki-deps:10.6 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2019:1529 Red Hat Security Advisory: pki-deps:10.6 security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2018:2868 Red Hat Security Advisory: Red Hat JBoss Web Server 5.0 Service Pack 1 security and bug fix update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- WID-SEC-2026-2610 Apache Tomcat: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 2, 2026
- DSA-4281-1 tomcat8 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2019:1529 Important: pki-deps:10.6 security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2018:3388-1 Security update for tomcat SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2699-1 Security update for tomcat SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3011-1 Security update for tomcat SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11468-1 tomcat-9.0.36-8.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13441-1 tomcat10-10.1.14-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0528 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 29, 2024
- ELSA-2019-1529 Important: pki-deps:10.6 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 30, 2019
References
- [www-announce] 20180722 [SECURITY] CVE-2018-8037 Apache Tomcat - Information Disclosure mailing-list
- 1041376 vdb-entry
- 104894 vdb-entry
- DSA-4281 vendor-advisory
- https://security.netapp.com/advisory/ntap-20180817-0001/
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- [www-announce] 20180809 [UPDATE][SECURITY] CVE-2018-8037 Apache Tomcat - Information Disclosure mailing-list
- RHSA-2018:2867 vendor-advisory
- RHSA-2018:2868 vendor-advisory
- [tomcat-dev] 20190319 svn commit: r1855831 [24/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190319 svn commit: r1855831 [25/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [23/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190325 svn commit: r1856174 [24/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190413 svn commit: r1857494 [17/20] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190413 svn commit: r1857496 [3/4] - in /tomcat/site/trunk: ./ docs/ xdocs/ mailing-list
- [tomcat-dev] 20190415 svn commit: r1857582 [18/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ mailing-list
- [tomcat-dev] 20190415 svn commit: r1857582 [19/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ mailing-list
- RHSA-2019:1529 vendor-advisory
- [tomcat-users] 20191001 Additional Information on Apache Tomcat CVE-2018-8037 mailing-list
- [tomcat-users] 20191001 Re: Additional Information on Apache Tomcat CVE-2018-8037 mailing-list
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- [tomcat-dev] 20200203 svn commit: r1873527 [24/30] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200203 svn commit: r1873527 [25/30] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [28/34] - /tomcat/site/trunk/docs/ mailing-list
- [tomcat-dev] 20200213 svn commit: r1873980 [29/34] - /tomcat/site/trunk/docs/ mailing-list
- https://www.oracle.com/security-alerts/cpuapr2020.html