CVE-2026-93446

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Apache Tomcat

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-459CWE-459

How to fix

Vendor advisories

lists.apache.org/thread.html/zh87okr5qspv4byzfpy2w6dqrokrnxzw

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache Tomcat	11.0.0-M21 ≤ v ≤ 11.0.26, 10.1.25 ≤ v ≤ 10.1.60, 9.0.90 ≤ v ≤ 9.0.122	—

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