{"id":"CVE-2025-52434","summary":"Apache Tomcat: APR/Native Connector crash leading to DoS","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.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions \nmay also be affected.\n\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","aliases":["BIT-tomcat-2025-52434","GHSA-4j3c-42xv-3f84"],"modified":"2026-05-18T09:41:38.531655120Z","published":"2025-07-10T19:03:47.225Z","related":["ALSA-2025:14177","ALSA-2025:14178","ALSA-2025:14181","SUSE-SU-2025:03024-1","SUSE-SU-2026:1058-1","openSUSE-SU-2025:15440-1"],"database_specific":{"cwe_ids":["CWE-362"],"cna_assigner":"apache","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"9.0.0.M1"},{"last_affected":"9.0.106"},{"introduced":"8.5.0"},{"last_affected":"8.5.100"}]},{"source":"DESCRIPTION","extracted_events":[{"introduced":"9.0.0.M1"},{"fixed":"9.0.106"},{"introduced":"8.5.0"},{"fixed":"8.5.100"}]}],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52434.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/07/10/11"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52434.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/gxgh65004f25y8519coth6w7vchww030"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52434"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/tomcat","events":[{"introduced":"16bf392c67833ad549733b58c350ff92b5ee782a"},{"fixed":"43d5ad023d2eee2ca162eded597a23afa0b92296"}],"database_specific":{"source":"CPE_FIELD","extracted_events":[{"introduced":"9.0.0"},{"fixed":"9.0.107"}],"cpe":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-52434.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}