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{"bugzilla": {"description": "tomcat: Apache Tomcat: Error condition not handled when configuring CRLs", "id": "2494668", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494668"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-390", "details": ["A flaw was found in Apache Tomcat. When configuring Certificate Revocation Lists (CRLs) for a FFM (presumably a specific type of connector), the system fails to detect and act upon an error condition. This oversight could lead to unexpected behavior or a security bypass, as the intended security controls might not be properly enforced."], "mitigation": {"lang": "en:us", "value": "This vulnerability only affects Tomcat deployments using the FFM-based connector (requires Java 22+) with CRL-based certificate revocation checking. Deployments using the standard NIO/NIO2 connectors or not using CRL checking are not affected."}, "name": "CVE-2026-53434", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "tomcat9", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "tomcat6", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "pki-servlet-engine", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "tomcat10", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "tomcat11", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:5", "fix_state": "Fix deferred", "package_name": "jws5-tomcat", "product_name": "Red Hat JBoss Web Server 5"}], "public_date": "2026-06-29T20:41:06Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53434\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53434\nhttps://lists.apache.org/thread/x510lbq0sfrd1qyo7q3r1mpllgpdcosk"], "statement": "A flaw was found in Apache Tomcat. When using the FFM-based connector with CRL-based certificate revocation checking, an error in CRL data processing is not handled correctly, potentially allowing revoked certificates to be accepted. This only affects Tomcat 10.1.0-M7+ and 11.x using the FFM connector (Java 22+ Foreign Function & Memory API) with CRL configuration \u2014 an extremely narrow set of conditions not present in standard Red Hat deployments.", "threat_severity": "Low"}

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