{"id":"CVE-2024-31309","aliases":[],"url":"https://o3.security/vulnerability/CVE-2024-31309","summary":"Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack","details":"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.","published":"2024-04-10T12:07:16.975Z","modified":"2026-08-12T03:51:40.916354286Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.94615,"percentile":0.9985,"asOf":"2026-09-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2024/04/03/16"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2024/04/10/7"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00021.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PBKLPQ6ECG4PGEPRCYI3Y3OITNDEFCCV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QV77HYM7ARSTL3B6U3IFG7PHDU65WL4I/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3XON6RM5ZKCZ6K6NB7BOTAWMJQKXJDO/"},{"type":"WEB","url":"https://www.kb.cert.org/vuls/id/421644"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/31xxx/CVE-2024-31309.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/f9qh3g3jvy153wh82pz4onrfj1wh13kc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-31309"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:40.916354286Z"}}