{"id":"CVE-2026-114605","aliases":["GHSA-45c3-73f7-pv4m"],"url":"https://o3.security/vulnerability/CVE-2026-114605","summary":"dnspython dns.name.from_wire_parser() excessive CPU use","details":"### Impact\nA maliciously crafted DNS message may cause dns.name.from_wire_parser() to use excessive CPU for DNS name decompression.  Applications that process untrusted DNS wire form messages with dnspython may be degraded or DoS'd by the extra CPU use required.\n\n### Patches\nThis problem is fixed in dnspython 2.9.0.\n\n### Workarounds\nThere are no known workarounds.\n\n### Credit\nEvgenios Gkritsis, Department of Informatics, University of Piraeus & Athena Research Center, Greece\nConstantinos Patsakis, Department of Informatics, University of Piraeus & Athena Research Center, Greece\nGeorge Stergiopoulos, Department of Informatics, Athens University of Economics and Business, Greece","published":"2026-10-22T16:25:32.509Z","modified":"2026-10-28T02:30:49.727335412Z","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":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"dnspython","fixedVersion":"2.9.0"}],"fix":{"url":"https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023","label":"rthalley/dnspython@b485e46"},"references":[{"type":"WEB","url":"https://github.com/rthalley/dnspython/releases/tag/v2.9.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114605.json"},{"type":"ADVISORY","url":"https://github.com/rthalley/dnspython/security/advisories/GHSA-45c3-73f7-pv4m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114605"},{"type":"FIX","url":"https://github.com/rthalley/dnspython/commit/b485e460c266540a1a09ca6d8d1d7b685b1d3023"},{"type":"PACKAGE","url":"https://github.com/rthalley/dnspython"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:49.727335412Z"}}