{"id":"GHSA-9f57-9rhg-4hvm","summary":"Kwik hash collision vulnerability","details":"An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).","aliases":["CVE-2025-23020"],"modified":"2025-02-20T20:57:07.205105Z","published":"2025-02-20T03:32:03Z","database_specific":{"github_reviewed_at":"2025-02-20T20:18:50Z","nvd_published_at":"2025-02-20T03:15:12Z","cwe_ids":["CWE-407"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-23020"},{"type":"WEB","url":"https://github.com/ptrd/kwik/commit/b0733d72bad76bc5d8df2f4a7792ebb2539ebdc8"},{"type":"WEB","url":"https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory"},{"type":"PACKAGE","url":"https://github.com/ptrd/kwik"},{"type":"WEB","url":"https://github.com/ptrd/kwik/releases/tag/v0.10.1"}],"affected":[{"package":{"name":"tech.kwik:kwik","ecosystem":"Maven","purl":"pkg:maven/tech.kwik/kwik"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.1"}]}],"versions":["0.10","0.8.10","0.8.11","0.8.12","0.8.13","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.8.8","0.8.9","0.9","0.9.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-9f57-9rhg-4hvm/GHSA-9f57-9rhg-4hvm.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:L"}]}