Low [CVE-2026-59084] Insufficient documentation for EncryptInterceptor may lead to insecure configurations
This low-severity Red Hat Linux advisory covers CVE-2026-59084 affecting Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.
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Summary
Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.
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.
Insufficient technical documentation regarding the secure configuration of the EncryptInterceptor component may lead to deployments with insecure settings.
This vulnerability could allow an attacker to exploit misconfigurations that arise from unclear guidance, potentially compromising the confidentiality or integrity of data processed by the affected system.
Without clear guidance on secure configuration, administrators might inadvertently deploy the interceptor in a way that weakens security, rather than a direct code flaw. This issue affects Red Hat products utilizing Apache Tomcat, including Red Hat Enterprise Linux and Red Hat JBoss Web Server.
Red Hat severity: Low — CVSS 3.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-1188.
Red Hat lists Red Hat JBoss Web Server 6; Red Hat JBoss Web Server 7 as not affected.
- 11.0.0
- 11.0.23
- 10.1.0
- 10.1.56
- 9.0.13
- 9.0.119
- 8.5.38
- 8.5.100
- 7.0.100
- 7.0.109
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
- 11.0.24
- 10.1.57
- 9.0.120
- tomcat11-main-11.0.24-0.1.hum1
- tomcat10-main-10.1.57-1.hum1
- RHSA-2026:36872
- RHSA-2026:37767
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
Mitigation checklist
- To mitigate this issue, ensure that the EncryptInterceptor in Apache Tomcat is configured according to secure best practices. Review existing configurations of EncryptInterceptor to verify that all security requirements are met and that no insecure settings are in place. If the EncryptInterceptor is not actively used, no specific action is required.
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
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