CVE-2026-74048

Medium

Description

Not Failing Securely ('Failing Open') vulnerability in Apache Tomcat. If the OpenSSLLifecycleListener is configured to use FIPS mode but FIPS activation fails, Tomcat logs and error but continues to use JSSE in non-FIPS mode with the provided configuration. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.26, from 10.1.22 through 10.1.60, from 9.0.92 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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Apache Tomcat

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-636CWE-636

How to fix

Vendor advisories

lists.apache.org/thread.html/v5ry0sx1c7x1wr5mx4cddj3p3mv1ho6m

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache Tomcat	11.0.0-M14 ≤ v ≤ 11.0.26, 10.1.22 ≤ v ≤ 10.1.60, 9.0.92 ≤ v ≤ 9.0.122	—

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