Description
Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Remediation
References
Related Vulnerabilities
WordPress Improper Input Validation Vulnerability (CVE-2020-28037)
WordPress Plugin PowerPress Podcasting by Blubrry Cross-Site Scripting (6.0.4)
Atlassian Jira Observable Discrepancy Vulnerability (CVE-2020-4028)
Craft CMS Authorization Bypass Through User-Controlled Key Vulnerability (CVE-2026-25497)