CVE-2026-24733
Fixed in a distro release EPSS <1%CVSS 6.5
Improper Input Validation vulnerability in Apache Tomcat. Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112. Older, EOL versions are also affected. Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
Products: Apache Software Foundation Apache Tomcat
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.apache.tomcat:tomcat-coyote | 11.0.15 |
| Maven | org.apache.tomcat:tomcat-coyote | 10.1.50 |
| Maven | org.apache.tomcat:tomcat-coyote | 9.0.113 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | kayenta-2025.0 | 2025.0.8-r9 |
| Chainguard | kayenta-2025.1 | 2025.1.6-r7 |
| Chainguard | kayenta-2025.2 | 2025.2.4-r3 |
| Chainguard | kayenta-2025.4 | 2025.4.3-r2 |
| Chainguard | kayenta-2026.0 | 2026.0.2-r2 |
| Chainguard | kayenta-fips-2025.0 | 2025.0.8-r10 |
| Chainguard | kayenta-fips-2025.1 | 2025.1.6-r7 |
| Chainguard | kayenta-fips-2025.2 | 2025.2.4-r3 |
| Chainguard | kayenta-fips-2025.4 | 2025.4.3-r2 |
| Chainguard | kayenta-fips-2026.0 | 2026.0.2-r2 |
| Chainguard | nacos | 3.1.1-r4 |
| Chainguard | nacos-docker | 3.1.1-r3 |
| Chainguard | ontop | 5.5.0-r12 |
| Chainguard | ontop-fips | 5.5.0-r8 |
| Chainguard | thingsboard-tb-mqtt-transport | 4.3.1-r2 |
| Chainguard | thingsboard-tb-mqtt-transport | 4.3.0.1-r1 |
| Chainguard | thingsboard-tb-node | 4.3.1-r2 |
| Chainguard | tomcat-8.5.87 | no fix |
| Debian 12 | tomcat10 | 10.1.52-1~deb12u1 |
| Debian 12 | tomcat9 | 9.0.70-2 |
| Debian 13 | tomcat10 | 10.1.52-1~deb13u1 |
| Debian 13 | tomcat11 | 11.0.15-1~deb13u1 |
| Debian 13 | tomcat9 | 9.0.70-2 |
| Debian 14 | tomcat10 | 10.1.52-1 |
| Debian 14 | tomcat11 | 11.0.15-1 |
| Debian 14 | tomcat9 | 9.0.70-2 |
| Red Hat Enterprise Linux 8 | tomcat | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-admin-webapps | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-docs-webapp | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-el-3.0-api | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-jsp-2.3-api | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-lib | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-servlet-4.0-api | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 8 | tomcat-webapps | 1:9.0.120-1.el8_10 |
| Red Hat Enterprise Linux 9 | tomcat | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-admin-webapps | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-docs-webapp | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-el-3.0-api | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-jsp-2.3-api | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-lib | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-servlet-4.0-api | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux 9 | tomcat-webapps | 1:9.0.117-1.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9 | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-admin-webapps | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-docs-webapp | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-el-3.0-api | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-jsp-2.3-api | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-lib | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-servlet-4.0-api | 1:9.0.120-1.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | tomcat9-webapps | 1:9.0.120-1.el10_0 |
| Red Hat hummingbird 1 | tomcat10 | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-admin-webapps | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-common | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-docs-webapp | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-el-5.0-api | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-jsp-3.1-api | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-lib | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-servlet-6.0-api | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-user-instance | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat10-webapps | 0:10.1.54-1.hum1 |
| Red Hat hummingbird 1 | tomcat11 | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-admin-webapps | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-docs-webapp | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-el-6.0-api | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-jsp-4.0-api | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-lib | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-servlet-6.1-api | 0:11.0.21-0.1.hum1 |
| Red Hat hummingbird 1 | tomcat11-webapps | 0:11.0.21-0.1.hum1 |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-admin-webapps | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-admin-webapps | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-admin-webapps | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-docs-webapp | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-docs-webapp | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-docs-webapp | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-el-5.0-api | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-el-5.0-api | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-el-5.0-api | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-javadoc | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-javadoc | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-javadoc | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-jsp-3.1-api | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-jsp-3.1-api | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-jsp-3.1-api | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-lib | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-lib | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-lib | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-selinux | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-selinux | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-selinux | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-servlet-6.0-api | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-servlet-6.0-api | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-servlet-6.0-api | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-webapps | 0:10.1.49-10.redhat_00008.1.el9jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-webapps | 0:10.1.49-10.redhat_00008.1.el8jws |
| Red Hat jboss enterprise web server 6.2 | jws6-tomcat-webapps | 0:10.1.49-10.redhat_00008.1.el10jws |
| Red Hat rhel e4s 8.8 | tomcat | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-admin-webapps | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-docs-webapp | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-el-3.0-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-jsp-2.3-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-lib | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-servlet-4.0-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 8.8 | tomcat-webapps | 1:9.0.120-1.el8_8 |
| Red Hat rhel e4s 9.2 | tomcat | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-admin-webapps | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-docs-webapp | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-el-3.0-api | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-jsp-2.3-api | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-lib | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-servlet-4.0-api | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.2 | tomcat-webapps | 1:9.0.120-1.el9_2 |
| Red Hat rhel e4s 9.4 | tomcat | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-admin-webapps | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-docs-webapp | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-el-3.0-api | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-jsp-2.3-api | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-lib | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-servlet-4.0-api | 1:9.0.120-1.el9_4 |
| Red Hat rhel e4s 9.4 | tomcat-webapps | 1:9.0.120-1.el9_4 |
| Red Hat rhel eus 9.6 | tomcat | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-admin-webapps | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-docs-webapp | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-el-3.0-api | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-jsp-2.3-api | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-lib | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-servlet-4.0-api | 1:9.0.120-1.el9_6 |
| Red Hat rhel eus 9.6 | tomcat-webapps | 1:9.0.120-1.el9_6 |
| Red Hat rhel tus 8.8 | tomcat | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-admin-webapps | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-docs-webapp | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-el-3.0-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-jsp-2.3-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-lib | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-servlet-4.0-api | 1:9.0.120-1.el8_8 |
| Red Hat rhel tus 8.8 | tomcat-webapps | 1:9.0.120-1.el8_8 |
| Rocky Linux 10 | tomcat9 | 1:9.0.117-1.el10_2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat11 | 11.0.18-150600.13.15.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | tomcat | 9.0.115-3.160.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat11 | 11.0.18-150600.13.15.1 |
| SUSE Linux Enterprise Server 16.0 | tomcat10 | 10.1.52-160000.1.1 |
| SUSE Linux Enterprise Server 16.0 | tomcat11 | 11.0.18-160000.1.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | tomcat | 9.0.36-3.156.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | tomcat | 9.0.115-3.160.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat | 9.0.115-150200.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat10 | 10.1.52-150200.5.61.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat11 | 11.0.18-150600.13.15.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | tomcat10 | 10.1.52-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | tomcat11 | 11.0.18-160000.1.1 |
| Ubuntu 24.04 LTS | tomcat10 | no fix |
| Ubuntu 24.04 LTS | tomcat9 | no fix |
| Ubuntu 25.10 | tomcat10 | no fix |
| Ubuntu 25.10 | tomcat11 | no fix |
| Ubuntu 25.10 | tomcat9 | no fix |
| Ubuntu 26.04 LTS | tomcat10 | no fix |
| Ubuntu Pro 14.04 LTS | tomcat6 | no fix |
| Ubuntu Pro 18.04 LTS | tomcat9 | no fix |
| Ubuntu Pro 20.04 LTS | tomcat9 | no fix |
| Ubuntu Pro 22.04 LTS | tomcat9 | no fix |
| Wolfi | thingsboard-tb-mqtt-transport | 4.3.1-r2 |
| Wolfi | thingsboard-tb-mqtt-transport | 4.3.0.1-r1 |
| Wolfi | thingsboard-tb-node | 4.3.1-r2 |
| openSUSE Leap 15.6 | tomcat | 9.0.115-150200.102.1 |
| openSUSE Leap 15.6 | tomcat10 | 10.1.52-150200.5.61.1 |
| openSUSE Leap 15.6 | tomcat11 | 11.0.18-150600.13.15.1 |
| openSUSE Leap 16.0 | tomcat | 9.0.115-160000.1.1 |
| openSUSE Leap 16.0 | tomcat10 | 10.1.52-160000.1.1 |
| openSUSE Leap 16.0 | tomcat11 | 11.0.18-160000.1.1 |
| openSUSE Tumbleweed | tomcat | 9.0.115-1.1 |
| openSUSE Tumbleweed | tomcat10 | 10.1.52-1.1 |
| openSUSE Tumbleweed | tomcat11 | 11.0.18-1.1 |