RHEL 8 : tomcat (RHSA-2026:68680)

critical Nessus Plugin ID 346918

Synopsis

The remote Red Hat host is missing one or more security updates for tomcat.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:68680 advisory.

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

Security Fix(es):

* tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)

* tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)

* tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication. (CVE-2026-42498)

* tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)

* tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)

* tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration (CVE-2026-55957)

* tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve (CVE-2026-59083)

* tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure configurations (CVE-2026-59084)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL tomcat package based on the guidance in RHSA-2026:68680.

Plugin Details

Severity: Critical

ID: 346918

File Name: redhat-RHSA-2026-68680.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/17/2026

Updated: 9/17/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-43512

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_e4s:8.8, cpe:/o:redhat:rhel_tus:8.8, p-cpe:/a:redhat:enterprise_linux:tomcat-admin-webapps, p-cpe:/a:redhat:enterprise_linux:tomcat-docs-webapp, p-cpe:/a:redhat:enterprise_linux:tomcat-el-3.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-jsp-2.3-api, p-cpe:/a:redhat:enterprise_linux:tomcat-lib, p-cpe:/a:redhat:enterprise_linux:tomcat-servlet-4.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-webapps, p-cpe:/a:redhat:enterprise_linux:tomcat

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/17/2026

Vulnerability Publication Date: 3/6/2025

Reference Information

CVE: CVE-2026-41293, CVE-2026-42498, CVE-2026-43512, CVE-2026-43513, CVE-2026-43515, CVE-2026-55957, CVE-2026-59083, CVE-2026-59084

CWE: 1188, 1286, 178, 201, 303, 305, 551, 807

RHSA: 2026:68680

Detections

Analytics