{"cve_id":"CVE-2024-31309","published":"2024-04-10T12:15:09.257000+00:00","last_modified":"2026-06-17T07:28:10.030000+00:00","vuln_status":"Modified","description":"HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server.  Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected.\n\nUsers can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute.  ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.\nUsers are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","base_score":7.5,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"NONE","impact_i":"NONE","impact_a":"HIGH","cwe_ids":["CWE-20"],"in_kev":false,"kev_date_added":null,"kev_ransomware":false,"epss_score":0.94615,"epss_percentile":0.99856,"cap_rule_version":"0.1.1","stage":"IMPACT","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"NONE","caps":["DOS"],"terminal":true,"cap_confidence":"high","ingested_at":"2026-09-18T10:58:21.532887+00:00","first_seen":"2024-04-10T12:15:09.257000+00:00","kev_first_seen":null,"novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["apache","debian","fedoraproject"],"products":["debian_linux","fedora","traffic_server"],"affected":[{"vendor":"apache","product":"traffic_server","ranges":["≥ 8.0.0 and < 8.1.10","≥ 9.0.0 and < 9.2.4"]},{"vendor":"debian","product":"debian_linux","ranges":["10.0"]},{"vendor":"fedoraproject","product":"fedora","ranges":["38","39","40"]}]}