Packages
- tomcat8 - Servlet and JSP engine
Details
It was discovered that Tomcat incorrectly handled authorization when
multiple method constraints defined the same HTTP method. A remote
attacker could possibly use this issue to bypass authorization
restrictions. (CVE-2026-43515)
It was discovered that the Tomcat number guess example application did
not properly sanitize user-supplied input. An attacker could possibly
use this issue to inject malicious scripts, resulting in cross-site
scripting. (CVE-2026-50229)
It was discovered that Tomcat incorrectly evaluated rewrite valve
conditions in certain configurations. An attacker could possibly use
this issue to bypass rewrite rules, resulting in unauthorized access.
(CVE-2026-53404)
It was discovered that Tomcat incorrectly omitted certain authorization
information when logging the effective web.xml...
It was discovered that Tomcat incorrectly handled authorization when
multiple method constraints defined the same HTTP method. A remote
attacker could possibly use this issue to bypass authorization
restrictions. (CVE-2026-43515)
It was discovered that the Tomcat number guess example application did
not properly sanitize user-supplied input. An attacker could possibly
use this issue to inject malicious scripts, resulting in cross-site
scripting. (CVE-2026-50229)
It was discovered that Tomcat incorrectly evaluated rewrite valve
conditions in certain configurations. An attacker could possibly use
this issue to bypass rewrite rules, resulting in unauthorized access.
(CVE-2026-53404)
It was discovered that Tomcat incorrectly omitted certain authorization
information when logging the effective web.xml configuration. An
attacker could possibly use this issue to hide authorization
constraints, resulting in reduced auditability. (CVE-2026-55276)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 18.04 LTS bionic | libtomcat8-embed-java – 8.5.39-1ubuntu1~18.04.3+esm6 | ||
| libtomcat8-java – 8.5.39-1ubuntu1~18.04.3+esm6 | |||
| tomcat8-examples – 8.5.39-1ubuntu1~18.04.3+esm6 | |||
| 16.04 LTS xenial | libtomcat8-java – 8.0.32-1ubuntu1.13+esm2 | ||
| tomcat8-examples – 8.0.32-1ubuntu1.13+esm2 | |||
Reduce your security exposure
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