CVE-2026-55276
jws7-tomcat: Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty author...
CVE-2026-55276 is fixed in 35 products on 1 platform, first by RHSA-2026:67163, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.1
low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0061
49th percentile
Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| jws6-tomcat · RHEL 10 | 10.1.49-16.redhat_00016.1.el10jws | RHSA-2026:73981 | Aug 25, 2026 |
| jws7-tomcat · RHEL 10 | 11.0.21-6.redhat_00005.1.el10jws | RHSA-2026:49951 | Aug 6, 2026 |
| libtomcat8-embed-java · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | libtomcat8-embed-java 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| libtomcat8-java · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | libtomcat8-java 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat · opensuse-leap 16.0 | 9.0.119-160000.1.1 | OPENSUSE-SU-2026:21327-1 | Jul 13, 2026 |
| tomcat · sles 15.7 | 9.0.119-150200.111.1 | SUSE-SU-2026:3088-1 | Jul 16, 2026 |
| tomcat · sles 16.0 | 9.0.119-160000.1.1 | SUSE-SU-2026:22646-1 | Jul 13, 2026 |
| tomcat-admin-webapps · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-admin-webapps · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-admin-webapps · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-admin-webapps · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-docs-webapp · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-docs-webapp · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-docs-webapp · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-docs-webapp · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-el-3.0-api · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-el-3.0-api · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-el-3.0-api · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-el-3.0-api · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-jsp-2.3-api · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-jsp-2.3-api · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-jsp-2.3-api · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-jsp-2.3-api · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-lib · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-lib · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-lib · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-lib · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-servlet-4.0-api · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-servlet-4.0-api · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-servlet-4.0-api · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-servlet-4.0-api · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat-webapps · RHEL 8 | 1:9.0.120-1.el8_10 | RHSA-2026:68677 | Sep 19, 2026 |
| tomcat-webapps · RHEL 9 | 1:9.0.120-2.el9_8 | RHSA-2026:68660 | Sep 19, 2026 |
| tomcat-webapps · almalinux 8 | 1:9.0.120-1.el8_10 | ALSA-2026:68677 | Sep 17, 2026 |
| tomcat-webapps · almalinux 9 | 1:9.0.120-2.el9_8 | ALSA-2026:68660 | Sep 17, 2026 |
| tomcat10 · Debian 14 | 10.1.60-1 | DEBIAN-CVE-2026-55276 | Jun 30, 2026 |
| tomcat10 · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10 · opensuse-leap 16.0 | 10.1.56-160000.1.1 | OPENSUSE-SU-2026:21328-1 | Jul 13, 2026 |
| tomcat10 · sles 15.7 | 10.1.56-150200.5.70.1 | SUSE-SU-2026:3112-1 | Jul 17, 2026 |
| tomcat10 · sles 16.0 | 10.1.56-160000.1.1 | SUSE-SU-2026:22647-1 | Jul 13, 2026 |
| tomcat10-admin-webapps · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-docs-webapp · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-el-5.0-api · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-jsp-3.1-api · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-lib · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-servlet-6.0-api · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10-webapps · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat11 · Debian 14 | 11.0.24-1 | DEBIAN-CVE-2026-55276 | Jun 30, 2026 |
| tomcat11 · opensuse-leap 16.0 | 11.0.23-160000.1.1 | OPENSUSE-SU-2026:21329-1 | Jul 13, 2026 |
| tomcat11 · sles 15.7 | 11.0.23-150600.13.24.1 | SUSE-SU-2026:3087-1 | Jul 16, 2026 |
| tomcat11 · sles 16.0 | 11.0.23-160000.1.1 | SUSE-SU-2026:22648-1 | Jul 13, 2026 |
| tomcat8 · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat8-admin · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8-admin 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat8-common · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8-common 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat8-docs · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8-docs 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 21, 2026 |
| tomcat8-examples · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8-examples 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat8-user · Ubuntu 18.04.6 LTS (bionic) | 8.5.39-1ubuntu1~18.04.3+esm6 | tomcat8-user 8.5.39-1ubuntu1~18.04.3+esm6 | Jul 18, 2026 |
| tomcat9 · Debian 12.15 (bookworm) | 9.0.70-2 | DEBIAN-CVE-2026-55276 | Jun 30, 2026 |
| tomcat9 · Debian 13.5 (trixie) | 9.0.70-2 | DEBIAN-CVE-2026-55276 | Jun 30, 2026 |
| tomcat9 · Debian 14 | 9.0.70-2 | DEBIAN-CVE-2026-55276 | Jun 30, 2026 |
| tomcat9 · RHEL 10 | 9.0.120-1.el10_0 | RHSA-2026:67163 | May 27, 2026 |
| tomcat9 · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9 · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-admin-webapps · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-admin-webapps · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-docs-webapp · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-docs-webapp · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-el-3.0-api · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-el-3.0-api · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-jsp-2.3-api · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-jsp-2.3-api · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-lib · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-lib · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-servlet-4.0-api · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-servlet-4.0-api · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
| tomcat9-webapps · almalinux 10 | 1:9.0.120-1.el10_2.alma.1 | ALSA-2026:68651 | Sep 17, 2026 |
| tomcat9-webapps · amzn 2023 | 1:9.0.120-1.amzn2023.0.1 | ALAS2023-2026-1945 | Jul 20, 2026 |
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