{"id":"CVE-2025-23020","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":["GHSA-9f57-9rhg-4hvm"],"modified":"2026-07-15T01:49:13.918689248Z","published":"2025-02-20T00:00:00Z","database_specific":{"cna_assigner":"mitre","cwe_ids":["CWE-407"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23020.json"},"references":[{"type":"WEB","url":"https://github.com/ptrd/kwik/releases/tag/v0.10.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23020.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-23020"},{"type":"PACKAGE","url":"https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ptrd/kwik","events":[{"introduced":"0"},{"fixed":"d1288760c437aa313aaf5f5ca63c0bbc2009d1c8"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.10.1"}],"source":["AFFECTED_FIELD","DESCRIPTION","REFERENCES"]}}],"versions":["v0.10","v0.9.1","v0.9","v0.8.13","v0.8.12","v0.8.11","v0.8.10","v0.8.9","v0.8.8","v0.8.7","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-23020.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}