{"id":"CVE-2026-59173","summary":"Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions","details":"Uncontrolled Resource Consumption vulnerability in Apache Traffic Server.\n\nThis issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2.\n\nUsers are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.","modified":"2026-08-08T03:31:09.813214979Z","published":"2026-07-18T12:52:18.923Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"9.0.0"},{"last_affected":"9.2.13"},{"introduced":"10.0.0"},{"last_affected":"10.1.2"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"introduced":"9.0.0"},{"fixed":"9.1.13"},{"introduced":"10.0.0"},{"fixed":"10.1.2"}],"source":"DESCRIPTION"}],"cna_assigner":"apache","cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59173.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/07/17/5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59173.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/lhlbhphmv5dsfgx1fx84mgonzbocpzhd"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59173"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/trafficserver","events":[{"introduced":"b14030656330ed623cd1f9efe2f4f9abd9d16e29"},{"fixed":"056a39fb8c468a89a98be004ad6ae28b3d435c08"},{"introduced":"3fa146678bc6a061722f4ea930998ae29ad70de3"},{"fixed":"52f3d2929555b8aa9575f691a27dc3eca4b9bf75"}],"database_specific":{"cpe":"cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"9.0.0"},{"fixed":"9.2.14"},{"introduced":"10.0.0"},{"fixed":"10.1.3"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59173.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}