{"schema_version":"1.9.0","id":"GHSA-cf92-gfcw-6v53","published":"2026-05-06T20:40:17Z","modified":"2026-07-13T16:42:43.993773357Z","aliases":["CVE-2026-42448","PYSEC-2026-2616"],"summary":"Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed","details":"### Impact\nA receiver who specifies \"--output <dir>\" where that output directory currently exists (as a directory).\n\n### Patches\n0.24.0 will contain the patch\n\n### Workarounds\nEnsure local target directories specified by \"--output\" do not already exist\n\n### Resources\nPrivate email and Signal communications from a user.\nMagic Wormhole thanks  @marduc812","affected":[{"package":{"name":"magic-wormhole","ecosystem":"PyPI","purl":"pkg:pypi/magic-wormhole"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.23.0"},{"fixed":"0.24.0"}]}],"versions":["0.23.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-cf92-gfcw-6v53/GHSA-cf92-gfcw-6v53.json"}}],"references":[{"type":"WEB","url":"https://github.com/magic-wormhole/magic-wormhole/security/advisories/GHSA-cf92-gfcw-6v53"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42448"},{"type":"PACKAGE","url":"https://github.com/magic-wormhole/magic-wormhole"}],"database_specific":{"cwe_ids":["CWE-22"],"github_reviewed":true,"github_reviewed_at":"2026-05-06T20:40:17Z","nvd_published_at":"2026-05-26T18:16:48Z","severity":"LOW"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N"}]}