{"id":"CVE-2025-53020","summary":"Apache HTTP Server: HTTP/2 DoS by Memory Increase","details":"Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server.\n\nThis issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63.\n\nUsers are recommended to upgrade to version 2.4.64, which fixes the issue.","aliases":["BIT-apache-2025-53020"],"modified":"2026-09-15T11:45:21.595640222Z","published":"2025-07-10T16:59:06.340Z","related":["ALSA-2026:22140","ALSA-2026:22528","ALSA-2026:22551","SUSE-SU-2025:02565-1","SUSE-SU-2025:02682-1","SUSE-SU-2025:02683-1","SUSE-SU-2025:02684-1","SUSE-SU-2025:02685-1","SUSE-SU-2026:21846-1","SUSE-SU-2026:2686-1","openSUSE-SU-2025:15360-1","openSUSE-SU-2026:20810-1"],"database_specific":{"cwe_ids":["CWE-401"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53020.json","unresolved_ranges":[{"extracted_events":[{"introduced":"2.4.17"},{"last_affected":"2.4.63"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"apache"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/07/10/10"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53020.json"},{"type":"ADVISORY","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53020"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/httpd","events":[{"introduced":"00ea29f9b631b2f7e57b4c690c70c3f4d996977d"},{"fixed":"87b9865fa4b89348b96456d9c0c93ae8cb611792"}],"database_specific":{"cpe":"cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.4.17"},{"fixed":"2.4.64"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53020.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}