Details
It was discovered that Tomcat incorrectly handled digest
authentication. A remote attacker could possibly use this issue to
bypass authentication restrictions. (CVE-2026-43512)
It was discovered that Tomcat incorrectly handled case sensitivity
in LockOutRealm. A remote attacker could possibly use this issue to
bypass account lockout protections and obtain sensitive information.
(CVE-2026-43513)
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 Tomcat incorrectly handled digest
authentication. A remote attacker could possibly use this issue to
bypass authentication restrictions. (CVE-2026-43512)
It was discovered that Tomcat incorrectly handled case sensitivity
in LockOutRealm. A remote attacker could possibly use this issue to
bypass account lockout protections and obtain sensitive information.
(CVE-2026-43513)
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)
Update instructions
After a standard system update you need to restart Tomcat to 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 | ||
|---|---|---|---|
| 16.04 LTS xenial | libtomcat7-java – 7.0.68-1ubuntu0.4+esm4 | ||
| tomcat7 – 7.0.68-1ubuntu0.4+esm4 | |||
| 14.04 LTS trusty | libtomcat6-java – 6.0.39-1ubuntu0.1+esm3 | ||
| libtomcat7-java – 7.0.52-1ubuntu0.16+esm2 | |||
| tomcat6 – 6.0.39-1ubuntu0.1+esm3 | |||
| tomcat7 – 7.0.52-1ubuntu0.16+esm2 | |||
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