CVEvulnerability
CVE-2026-86243
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-23
- Last modified
- 2026-10-06
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-126
Description
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.
Affected configurations
• apache tomcat native (>= 1.3.0 < 1.3.9)
• apache tomcat native (>= 2.0.0 < 2.0.16)
Related
Weakness · CWE (1)
- CWE-126 Buffer Over-read weakness
References
- https://lists.apache.org/thread/8p4jf02w54m22x0cwpq2x53w3ov8o557 Vendor Advisory, Mailing List
- http://www.openwall.com/lists/oss-security/2026/09/23/31 Mailing List, Third Party Advisory