CVE-2026-75973

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{"affected_release": [{"advisory": "RHSA-2026:68257", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "tomcat10-main-10.1.60-0.1.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-09-16T00:00:00Z"}, {"advisory": "RHSA-2026:68258", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "tomcat11-main-11.0.26-0.1.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-09-16T00:00:00Z"}], "bugzilla": {"description": "tomcat: Apache Tomcat: Cross-context authentication mix-up via Jakarta Authentication misconfiguration", "id": "2539354", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539354"}, "csaw": false, "cwe": "CWE-305", "details": ["Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a request would be used for all web applications.\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M4 through 9.0.121.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected.\nUsers are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fixes the issue.", "A flaw was found in Apache Tomcat. When Jakarta Authentication is configured with SimpleAuthConfigProvider as the default provider and multiple web applications utilize it, an improper authentication vulnerability arises. This issue causes the authentication realm established for the first web application to be incorrectly applied to all subsequent web applications. Consequently, this could lead to unauthorized access or incorrect authorization decisions across different web applications."], "name": "CVE-2026-75973", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "tomcat9", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "tomcat6", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "pki-deps:10.6/pki-servlet-engine", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "pki-servlet-engine", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "hi/tomcat", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:5", "fix_state": "Under investigation", "package_name": "jws5-tomcat", "product_name": "Red Hat JBoss Web Server 5"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:6", "fix_state": "Under investigation", "package_name": "jws6-tomcat", "product_name": "Red Hat JBoss Web Server 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:7", "fix_state": "Under investigation", "package_name": "jws7-tomcat", "product_name": "Red Hat JBoss Web Server 7"}], "public_date": "2026-09-23T11:14:07Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-75973\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-75973\nhttps://lists.apache.org/thread/njjcdkkzqyzx4n3ffc4ffjmyh5mpl1gr"], "threat_severity": "Low"}

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