CVE-2026-86247
Fixed in a distro release EPSS <1%CVSS 7.4
Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fixes the issue.
Products: Apache Software Foundation Apache Tomcat Native
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2 | tomcat-native | 1.2.38-2.amzn2 |
| Amazon Linux 2023 | tomcat-native | 2.0.16-1.amzn2023.0.1 |
| Debian 12 | tomcat-native | no fix |
| Debian 13 | tomcat-native | no fix |
| Debian 14 | tomcat-native | 2.0.16-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libtcnative-1-0 | 1.3.9-150600.16.9.2 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | libtcnative-1-0 | 1.3.9-150600.16.9.2 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Module for Web and Scripting 15 SP7 | tomcat11 | 11.0.26-150600.13.36.2 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libtcnative-1-0 | 1.3.9-150600.16.9.2 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | tomcat11 | 11.0.26-150600.13.36.2 |
| SUSE Linux Enterprise Server 16.0 | libtcnative-1-0 | 1.3.9-160000.1.1 |
| SUSE Linux Enterprise Server 16.0 | libtcnative-2-0 | 2.0.16-160000.1.1 |
| SUSE Linux Enterprise Server 16.0 | tomcat | 9.0.122-160000.1.1 |
| SUSE Linux Enterprise Server 16.0 | tomcat10 | 10.1.60-160000.1.1 |
| SUSE Linux Enterprise Server 16.0 | tomcat11 | 11.0.26-160000.1.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libtcnative-1-0 | 1.3.9-150200.6.11.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libtcnative-1-0 | 1.3.9-150600.16.9.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libtcnative-2-0 | 2.0.16-150400.9.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat | 9.0.122-150200.123.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat10 | 10.1.60-150200.5.82.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | tomcat11 | 11.0.26-150600.13.36.2 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libtcnative-1-0 | 1.3.9-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libtcnative-2-0 | 2.0.16-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | tomcat | 9.0.122-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | tomcat10 | 10.1.60-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | tomcat11 | 11.0.26-160000.1.1 |
| Ubuntu 16.04 LTS | tomcat-native | no fix |
| Ubuntu 18.04 LTS | tomcat-native | no fix |
| Ubuntu 20.04 LTS | tomcat-native | no fix |
| Ubuntu 22.04 LTS | tomcat-native | no fix |
| Ubuntu 24.04 LTS | tomcat-native | no fix |
| Ubuntu 26.04 LTS | tomcat-native | no fix |
| Ubuntu 26.10 | tomcat-native | no fix |
| openSUSE Leap 16.0 | libtcnative-1-0 | 1.3.9-160000.1.1 |
| openSUSE Leap 16.0 | libtcnative-2-0 | 2.0.16-160000.1.1 |
| openSUSE Leap 16.0 | tomcat | 9.0.122-160000.1.1 |
| openSUSE Leap 16.0 | tomcat10 | 10.1.60-160000.1.1 |
| openSUSE Leap 16.0 | tomcat11 | 11.0.26-160000.1.1 |
| openSUSE Tumbleweed | libtcnative-1-0 | 1.3.9-1.1 |
| openSUSE Tumbleweed | libtcnative-2-0 | 2.0.16-1.1 |