{"id":"PYSEC-2026-687","summary":"Nicotine+ DoS on Null Character in Download Request","details":"Denial of service (DoS) vulnerability in Nicotine+ starting with version 3.0.3 and prior to version 3.2.1 allows a user with a modified Soulseek client to crash Nicotine+ by sending a file download request with a file path containing a null character.","aliases":["CVE-2021-45848","GHSA-p4v2-r99v-wjc2"],"modified":"2026-07-06T08:00:47.602203985Z","published":"2026-07-02T14:13:16.407927Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45848"},{"type":"WEB","url":"https://github.com/nicotine-plus/nicotine-plus/issues/1777"},{"type":"WEB","url":"https://github.com/nicotine-plus/nicotine-plus/commit/0e3e2fac27a518f0a84330f1ddf1193424522045"},{"type":"PACKAGE","url":"https://github.com/nicotine-plus/nicotine-plus"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HWYV53KERFH2EC4XI2IVVQFTV75E5XM6"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202210-20"},{"type":"PACKAGE","url":"https://pypi.org/project/nicotine-plus"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-p4v2-r99v-wjc2"}],"affected":[{"package":{"name":"nicotine-plus","ecosystem":"PyPI","purl":"pkg:pypi/nicotine-plus"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.3"},{"fixed":"3.2.1"}]}],"versions":["3.0.3","3.0.4","3.0.5","3.0.6","3.1.0","3.1.1","3.2.0"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/nicotine-plus/PYSEC-2026-687.yaml"}}],"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:H"}]}