Improper Certificate Validation Affecting org.apache.tomcat:tomcat-coyote package, versions [8.5.0,9.0.113)[10.0.0-M1,10.1.50)[11.0.0-M1,11.0.15)
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published18 Feb 2026
- disclosed16 Feb 2026
- creditUnknown
Introduced: 16 Feb 2026
CVE-2025-66614 (opens in a new tab)How to fix?
Upgrade org.apache.tomcat:tomcat-coyote to version 9.0.113, 10.1.50, 11.0.15 or higher.
Overview
org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser.
Affected versions of this package are vulnerable to Improper Certificate Validation in the SNI extension, when client certificate authentication relies exclusively on the Connector (and is not enforced in the web application). The hostname provided via the SNI extension may be different from the hostname in the HTTP host header field.