Authentication Bypass Issues in Apache Tomcat

CVE-2026-43512

What is CVE-2026-43512?

The authentication bypass vulnerability in the digest authentication mechanism of Apache Tomcat poses a significant risk. It affects various versions, allowing unauthorized users to gain access under certain conditions. Users operating versions from 11.0.0-M1 to 11.0.21, 10.1.0-M1 to 10.1.54, and several older releases should take immediate action. It is strongly advised to upgrade to secure versions 11.0.22, 10.1.55, or 9.0.118 to safeguard against potential exploits associated with this vulnerability.

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