---
id: CVE-2026-93446
title: 'Apache Tomcat: Possible TLS 1.3 connection failures'
summary: >-
  Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3
  connections to fail intermittently.




  This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from
  10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.



  …
severity: none
cwe:
  - CWE-459
vendor: Apache Software Foundation
product: Apache Tomcat
affected:
  - apache_tomcat >= 11.0.0-M21 <= 11.0.26
  - apache_tomcat >= 10.1.25 <= 10.1.60
  - apache_tomcat >= 9.0.90 <= 9.0.122
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T13:44:35.673Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-93446'
references:
  - url: 'https://lists.apache.org/thread.html/zh87okr5qspv4byzfpy2w6dqrokrnxzw'
tags:
  - cve.org
ingestedAt: '2026-10-20T14:08:00.569Z'
---

## Overview

Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently.



This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.



Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

## Affected

- `apache_tomcat >= 11.0.0-M21 <= 11.0.26`
- `apache_tomcat >= 10.1.25 <= 10.1.60`
- `apache_tomcat >= 9.0.90 <= 9.0.122`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.