{"id":"CVE-2024-10550","aliases":["GHSA-7qq7-pvm9-x8rf","PYSEC-2026-1440"],"url":"https://o3.security/vulnerability/CVE-2024-10550","summary":"Denial of Service by ReDOS in h2oai/h2o-3","details":"A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity, leading to the exhaustion of server resources and making the server unresponsive.","published":"2025-03-20T10:10:11.240Z","modified":"2026-08-12T03:51:20.171691526Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"ai.h2o:h2o-core","fixedVersion":null},{"ecosystem":"PyPI","name":"h2o","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://huntr.com/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/10xxx/CVE-2024-10550.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-10550"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:20.171691526Z"}}