CVE-2026-86243 (GCVE-0-2026-86243)

Vulnerability from cvelistv5 – Published: 2026-09-23 12:24 – Updated: 2026-09-23 18:10
VLAI
Title
Apache Tomcat Native: DoS via TLS handshake
Summary
Buffer over-read vulnerability in Apache Tomcat Native during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash. 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 1.3.9 or 2.0.16, which fix the issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 15:28 UTC
CWE
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1085 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Tomcat Native Affected: 2.0.0 , ≤ 2.0.15 (semver)
Affected: 1.3.0 , ≤ 1.3.8 (semver)
guessed Create a notification for this product.
Show details on NVD website
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