Status: UPDATED | Advisory ID: CVE-2026-86246
| CVE | CVE-2026-86246 |
| CVSS Score / Version | 9.1 (Critical) / CVSS v3.1 |
| Updated | 2026-09-23 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | Apache Software Foundation Apache Tomcat Native |
| Classified as | CWE-1188 (Initialization of a Resource with an Insecure Default) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat Native |
| Subsystems | General OT |
| Sectors | Multiple |
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. (NVD)
Monitor Apache Software Foundation's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-86246 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-86246 |