Insufficient Technical Documentation in Apache Tomcat - CVE-2026-59084
Published: July 14, 2026
Vulnerability identifier: #VU137407
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-59084
CWE-ID: CWE-1059
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Tomcat
Apache Tomcat
Detailed vulnerability description
The vulnerability allows a remote user to bypass encryption protections.
The vulnerability exists due to improper documentation in EncryptInterceptor configuration when deploying the feature. A remote user can leverage an insecure configuration to bypass encryption protections.
How to mitigate CVE-2026-59084
Install security update from vendor's website.
Sources
- https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.57
- https://github.com/apache/tomcat/commit/79466463f18cf57704513a5aaa93961bf14c9ef5
- https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.24
- https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.120