Status: UPDATED | Advisory ID: CVE-2026-86248
| CVE | CVE-2026-86248 |
| CVSS Score / Version | 9.8 (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:H |
| 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 high. |
| Affected products | Apache Software Foundation Apache Tomcat |
| Classified as | CWE-287 (Improper Authentication) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
| Subsystems | General OT |
| Sectors | Multiple |
CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, 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-2026-86248 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-86248 |