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CVE-2026-86248

Apache Tomcat · Vulnerability

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-86248

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-86248

Published

Apache Tomcat

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Apache Software Foundation",
                    "product": "Apache Tomcat",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "11.0.0-M14",
                            "lessThanOrEqual": "11.0.25",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "10.1.22",
                            "lessThanOrEqual": "10.1.59",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.0.92",
                            "lessThanOrEqual": "9.0.121",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON