CVE-2026-59083
jws7-tomcat: Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security cons...
CVE-2026-59083 is fixed in 27 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
0.0052
44th percentile
Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, 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 11.0.24, 10.1.57 or 9.0.120, which fix 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 |
| 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 · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat · ol 9 | 1:9.0.120-2.el9_8 | ELSA-2026-68660 | Sep 17, 2026 |
| tomcat · opensuse-leap 16.0 | 9.0.120-160000.1.1 | OPENSUSE-SU-2026:21486-1 | Jul 30, 2026 |
| tomcat · rocky 8 | 1:9.0.120-1.el8_10 | RLSA-2026:68677 | Sep 19, 2026 |
| tomcat · rocky 9 | 1:9.0.120-2.el9_8 | RLSA-2026:68660 | Sep 19, 2026 |
| tomcat · sles 15.6 | 9.0.120-150200.114.1 | SUSE-SU-2026:3419-1 | Jul 30, 2026 |
| tomcat · sles 15.7 | 9.0.120-150200.114.1 | SUSE-SU-2026:3419-1 | Jul 30, 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-admin-webapps · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-admin-webapps · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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-docs-webapp · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-docs-webapp · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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-el-3.0-api · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-el-3.0-api · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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-jsp-2.3-api · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-jsp-2.3-api · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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-lib · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-lib · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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-servlet-4.0-api · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-servlet-4.0-api · ol 9 | 1:9.0.120-2.el9_8 | ELSA-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 |
| tomcat-webapps · ol 8 | 1:9.0.120-1.el8_10 | ELSA-2026-68677 | Sep 17, 2026 |
| tomcat-webapps · ol 9 | 1:9.0.120-2.el9_8 | ELSA-2026-68660 | Sep 17, 2026 |
| tomcat10 · Debian 14 | 10.1.60-1 | DEBIAN-CVE-2026-59083 | Jul 18, 2026 |
| tomcat10 · amzn 2023 | 1:10.1.57-1.amzn2023.0.1 | ALAS2023-2026-1946 | Jul 20, 2026 |
| tomcat10 · opensuse-leap 16.0 | 10.1.57-160000.1.1 | OPENSUSE-SU-2026:21487-1 | Jul 30, 2026 |
| tomcat10 · sles 15.6 | 10.1.57-150200.5.73.1 | SUSE-SU-2026:3418-1 | Jul 30, 2026 |
| tomcat10 · sles 15.7 | 10.1.57-150200.5.73.1 | SUSE-SU-2026:3418-1 | Jul 30, 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-2026-59083 | Jul 18, 2026 |
| tomcat11 · opensuse-leap 16.0 | 11.0.24-160000.1.1 | OPENSUSE-SU-2026:21490-1 | Jul 30, 2026 |
| tomcat11 · sles 15.6 | 11.0.24-150600.13.27.1 | SUSE-SU-2026:3430-1 | Jul 30, 2026 |
| tomcat11 · sles 15.7 | 11.0.24-150600.13.27.1 | SUSE-SU-2026:3430-1 | Jul 30, 2026 |
| tomcat9 · Debian 12.15 (bookworm) | 9.0.70-2 | DEBIAN-CVE-2026-59083 | Jul 18, 2026 |
| tomcat9 · Debian 13.5 (trixie) | 9.0.70-2 | DEBIAN-CVE-2026-59083 | Jul 18, 2026 |
| tomcat9 · Debian 14 | 9.0.70-2 | DEBIAN-CVE-2026-59083 | Jul 18, 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 · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 2026 |
| tomcat9 · rocky 10 | 1:9.0.120-1.el10_2 | RLSA-2026:68651 | Sep 19, 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-admin-webapps · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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-docs-webapp · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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-el-3.0-api · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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-jsp-2.3-api · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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-lib · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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-servlet-4.0-api · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 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 |
| tomcat9-webapps · ol 10 | 1:9.0.120-1.el10_2 | ELSA-2026-68651 | Sep 18, 2026 |
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