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Red Hat Security Advisory

RHSA-2026:68678

tomcat security update

Released 2026-09-17 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 30 records

Priority MEDIUM 52

Improper Input Validation vulnerability in Apache Tomcat.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.01705 Published 2026-05-12 Partial fix · 9.0.118, 10.1.55 +1 CWE-20
Priority MEDIUM 50

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.01221 Published 2026-05-12 Partial fix · 9.0.118, 10.1.55 +1 CWE-285
Priority MEDIUM 48

Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely configure the EncryptInterceptor were not clearly documented.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00506 Published 2026-07-14 Partial fix CWE-1059
Priority MEDIUM 48

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00607 Published 2026-06-29 Partial fix · 11.0.23, 10.1.56 +1 CWE-670
Priority MEDIUM 45

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password.

CVSS 3.1HIGH 7.3 Network No auth No interaction EPSS 0.02855 Published 2026-06-29 Partial fix · 11.0.5, 10.1.37 +1 CWE-304
Priority MEDIUM 44

Improper Handling of Case Sensitivity vulnerability in Apache Tomcat's GCI servlet allows security constraint bypass of security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet.

CVSS 3.1HIGH 7.3 Network No auth No interaction EPSS 0.03143 Published 2025-05-29 Partial fix · 9.0.105, 10.1.41 +1 CWE-178
Priority MEDIUM 40

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00709 Published 2026-04-09 Partial fix · 9.0.116, 10.1.52 +1 CWE-444
Priority LOW 39

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped.

CVSS 3.1HIGH 7.3 Network No auth No interaction EPSS 0.00699 Published 2026-06-29 Partial fix · 11.0.23, 10.1.56 +1 CWE-670
Priority LOW 39

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat.

CVSS 3.1HIGH 7.3 Network No auth No interaction EPSS 0.00691 Published 2026-05-12 Partial fix · 9.0.118, 10.1.55 +1 CWE-200
Priority LOW 39

Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00469 Published 2026-04-09 Partial fix · 9.0.116, 10.1.54 +1 CWE-116
Priority LOW 36

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint.

CVSS 3.1MEDIUM 6.5 Network No auth No interaction EPSS 0.00695 Published 2026-06-29 Partial fix · 11.0.23, 10.1.56 +1 CWE-285
TI-2026-36982 CVE-2026-50229 · GHSA-pg42-rg8c-j886

Apache Tomcat: XSS in number guess example

Priority LOW 34

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat.

CVSS 3.1MEDIUM 6.1 Network No auth User interaction EPSS 0.04091 Published 2026-06-29 Partial fix · 11.0.23, 10.1.56 +1 CWE-80
Priority LOW 34

Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.01939 Published 2024-12-17 Partial fix · 11.0.2, 10.1.34 +1 CWE-400
Priority LOW 31

Session Fixation vulnerability in Apache Tomcat via rewrite valve.

CVSS 3.1MEDIUM 6.5 Network No auth User interaction EPSS 0.00945 Published 2025-08-13 Partial fix · 11.0.8, 10.1.42 +1 CWE-384
Priority LOW 30

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00313 Published 2026-04-09 Partial fix · 9.0.116, 10.1.53 +1 CWE-20
Priority LOW 29

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component.

CVSS 3.1MEDIUM 6.5 Network No auth No interaction EPSS 0.00436 Published 2026-06-29 Partial fix · 11.0.23, 10.1.56 +1 CWE-287
TI-2026-20898 CVE-2026-25854 · GHSA-9m3c-qcxr-9x87

Apache Tomcat: Occasionally open redirect

Priority LOW 28

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.

CVSS 3.1MEDIUM 6.1 Network No auth User interaction EPSS 0.00582 Published 2026-04-09 Partial fix · 9.0.116, 10.1.53 +1 CWE-601
Priority LOW 18

Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat.

CVSS 3.1LOW 3.7 Network No auth No interaction EPSS 0.00352 Published 2026-05-12 Partial fix · 9.0.118, 10.1.55 +1 CWE-208