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CVE-2026-86248

CRITICALCVSS 9.8
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Description

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.

Timeline
Published:September 23rd, 2026 12:17 PM
Last modified:September 23rd, 2026 5:58 PM
CVSS Scoring

CVSS v3: 9.8 (CRITICAL)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)
CWE-287
References & Reports
Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute