CVE-2026-86246: critical vulnerability in Apache Tomcat Native
Apache Tomcat Native: Insecure OpenSSL options enabled
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.3%
Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX.
This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier unsupported versions may also be affected.
Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fix the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Apache Software Foundation · Apache Tomcat NativeRelated CVEs — Apache Tomcat Native
In the same product, most dangerous first.
CVE-2018-8020—CVE-2018-8020EPSS 4.2%CVE-2018-8019—CVE-2018-8019EPSS 4.0%CVE-2017-15698—CVE-2017-15698EPSS 3.5%CVE-2026-29145CRITICALApache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabledEPSS 0.7%CVE-2026-24734HIGHApache Tomcat Native, Apache Tomcat: OCSP revocation bypassEPSS 0.6%CVE-2026-86243HIGHApache Tomcat Native: DoS via TLS handshakeEPSS 0.6%