{"schema_version":"1.7.5","id":"GHSA-4j3c-42xv-3f84","published":"2025-07-10T21:31:52Z","modified":"2026-07-01T16:30:08.221470648Z","aliases":["BIT-tomcat-2025-52434","CVE-2025-52434"],"summary":"Apache Tomcat is vulnerable to resource exhaustion when using the APR/Native connector","details":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.\n\nThis issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.  The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","affected":[{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0.M1"},{"fixed":"9.0.107"}]}],"versions":["9.0.0.M1","9.0.0.M10","9.0.0.M11","9.0.0.M13","9.0.0.M15","9.0.0.M17","9.0.0.M18","9.0.0.M19","9.0.0.M20","9.0.0.M21","9.0.0.M22","9.0.0.M25","9.0.0.M26","9.0.0.M27","9.0.0.M3","9.0.0.M4","9.0.0.M6","9.0.0.M8","9.0.0.M9","9.0.1","9.0.10","9.0.100","9.0.102","9.0.104","9.0.105","9.0.106","9.0.11","9.0.12","9.0.13","9.0.14","9.0.16","9.0.17","9.0.19","9.0.2","9.0.20","9.0.21","9.0.22","9.0.24","9.0.26","9.0.27","9.0.29","9.0.30","9.0.31","9.0.33","9.0.34","9.0.35","9.0.36","9.0.37","9.0.38","9.0.39","9.0.4","9.0.40","9.0.41","9.0.43","9.0.44","9.0.45","9.0.46","9.0.48","9.0.5","9.0.50","9.0.52","9.0.53","9.0.54","9.0.55","9.0.56","9.0.58","9.0.59","9.0.6","9.0.60","9.0.62","9.0.63","9.0.64","9.0.65","9.0.67","9.0.68","9.0.69","9.0.7","9.0.70","9.0.71","9.0.72","9.0.73","9.0.74","9.0.75","9.0.76","9.0.78","9.0.79","9.0.8","9.0.80","9.0.81","9.0.82","9.0.83","9.0.84","9.0.85","9.0.86","9.0.87","9.0.88","9.0.89","9.0.90","9.0.91","9.0.93","9.0.94","9.0.95","9.0.96","9.0.97","9.0.98","9.0.99"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-4j3c-42xv-3f84/GHSA-4j3c-42xv-3f84.json"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"last_affected":"8.5.100"}]}],"versions":["8.5.0","8.5.100","8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.19","8.5.2","8.5.20","8.5.21","8.5.23","8.5.24","8.5.27","8.5.28","8.5.29","8.5.3","8.5.30","8.5.31","8.5.32","8.5.33","8.5.34","8.5.35","8.5.37","8.5.38","8.5.39","8.5.4","8.5.40","8.5.41","8.5.42","8.5.43","8.5.45","8.5.46","8.5.47","8.5.49","8.5.5","8.5.50","8.5.51","8.5.53","8.5.54","8.5.55","8.5.56","8.5.57","8.5.58","8.5.59","8.5.6","8.5.60","8.5.61","8.5.63","8.5.64","8.5.65","8.5.66","8.5.68","8.5.69","8.5.70","8.5.71","8.5.72","8.5.73","8.5.75","8.5.76","8.5.77","8.5.78","8.5.79","8.5.8","8.5.81","8.5.82","8.5.83","8.5.84","8.5.85","8.5.86","8.5.87","8.5.88","8.5.89","8.5.9","8.5.90","8.5.91","8.5.92","8.5.93","8.5.94","8.5.95","8.5.96","8.5.97","8.5.98","8.5.99"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-4j3c-42xv-3f84/GHSA-4j3c-42xv-3f84.json"}},{"package":{"name":"org.apache.tomcat.embed:tomcat-embed-core","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0.M1"},{"fixed":"9.0.107"}]}],"versions":["9.0.0.M1","9.0.0.M10","9.0.0.M11","9.0.0.M13","9.0.0.M15","9.0.0.M17","9.0.0.M18","9.0.0.M19","9.0.0.M20","9.0.0.M21","9.0.0.M22","9.0.0.M25","9.0.0.M26","9.0.0.M27","9.0.0.M3","9.0.0.M4","9.0.0.M6","9.0.0.M8","9.0.0.M9","9.0.1","9.0.10","9.0.100","9.0.102","9.0.104","9.0.105","9.0.106","9.0.11","9.0.12","9.0.13","9.0.14","9.0.16","9.0.17","9.0.19","9.0.2","9.0.20","9.0.21","9.0.22","9.0.24","9.0.26","9.0.27","9.0.29","9.0.30","9.0.31","9.0.33","9.0.34","9.0.35","9.0.36","9.0.37","9.0.38","9.0.39","9.0.4","9.0.40","9.0.41","9.0.43","9.0.44","9.0.45","9.0.46","9.0.48","9.0.5","9.0.50","9.0.52","9.0.53","9.0.54","9.0.55","9.0.56","9.0.58","9.0.59","9.0.6","9.0.60","9.0.62","9.0.63","9.0.64","9.0.65","9.0.67","9.0.68","9.0.69","9.0.7","9.0.70","9.0.71","9.0.72","9.0.73","9.0.74","9.0.75","9.0.76","9.0.78","9.0.79","9.0.8","9.0.80","9.0.81","9.0.82","9.0.83","9.0.84","9.0.85","9.0.86","9.0.87","9.0.88","9.0.89","9.0.90","9.0.91","9.0.93","9.0.94","9.0.95","9.0.96","9.0.97","9.0.98","9.0.99"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-4j3c-42xv-3f84/GHSA-4j3c-42xv-3f84.json"}},{"package":{"name":"org.apache.tomcat.embed:tomcat-embed-core","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"last_affected":"8.5.100"}]}],"versions":["8.5.0","8.5.100","8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.19","8.5.2","8.5.20","8.5.21","8.5.23","8.5.24","8.5.27","8.5.28","8.5.29","8.5.3","8.5.30","8.5.31","8.5.32","8.5.33","8.5.34","8.5.35","8.5.37","8.5.38","8.5.39","8.5.4","8.5.40","8.5.41","8.5.42","8.5.43","8.5.45","8.5.46","8.5.47","8.5.49","8.5.5","8.5.50","8.5.51","8.5.53","8.5.54","8.5.55","8.5.56","8.5.57","8.5.58","8.5.59","8.5.6","8.5.60","8.5.61","8.5.63","8.5.64","8.5.65","8.5.66","8.5.68","8.5.69","8.5.70","8.5.71","8.5.72","8.5.73","8.5.75","8.5.76","8.5.77","8.5.78","8.5.79","8.5.8","8.5.81","8.5.82","8.5.83","8.5.84","8.5.85","8.5.86","8.5.87","8.5.88","8.5.89","8.5.9","8.5.90","8.5.91","8.5.92","8.5.93","8.5.94","8.5.95","8.5.96","8.5.97","8.5.98","8.5.9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