{"id":"CVE-2026-42448","aliases":["EUVD-2026-31947","GHSA-cf92-gfcw-6v53","PYSEC-2026-2616","openSUSE-SU-2026:11370-1"],"status":"published","title":"wormhole receive, with --output pointing at an existing directory can be path-traversed","description":"Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies \"--output \u003cdir\u003e\" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00197,"percentile":0.09405,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-05-06T20:40:17Z","modified":"2026-10-28T02:31:08Z","fixes":[{"ecosystem":"PyPI","package":"magic-wormhole","fixed_in":["0.24.0"],"sources":["ghsa","osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"python-magic-wormhole","fixed_in":["0.24.0-1.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"magic-wormhole","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.23.0"},{"last_affected":"0.23.0"},{"fixed":"0.24.0"}]}],"versions":["0.23.0"]},{"source":"osv","ecosystem":"PyPI","package":"magic-wormhole","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.23.0"},{"fixed":"0.24.0"}]}],"versions":["0.23.0"]},{"source":"osv","ecosystem":"PyPI","package":"magic-wormhole","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.23.0"},{"fixed":"0.24.0"}]}],"versions":["0.23.0"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"python-magic-wormhole","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.0-1.1"}]}]}],"products":[{"vendor":"magic-wormhole","product":"magic-wormhole"}],"references":[{"url":"https://github.com/magic-wormhole/magic-wormhole/security/advisories/GHSA-cf92-gfcw-6v53","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42448","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cf92-gfcw-6v53","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42448.json","tags":["advisory"]},{"url":"https://github.com/magic-wormhole/magic-wormhole","tags":["package"]},{"url":"https://pypi.org/project/magic-wormhole","tags":["package"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42448","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-42448","title":"wormhole receive, with --output pointing at an existing directory can be path-traversed","description":"Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies \"--output \u003cdir\u003e\" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.","status":"published","published":"2026-05-26T17:57:20.946Z","modified":"2026-05-27T13:17:27.943Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-31947","description":"Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies \"--output \u003cdir\u003e\" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.","status":"published","published":"2026-05-26T17:57:20Z","modified":"2026-05-27T13:17:27Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T18:21:04.78276Z"}],"ghsa":[{"id":"GHSA-cf92-gfcw-6v53","title":"Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed","description":"### Impact\nA receiver who specifies \"--output \u003cdir\u003e\" 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","status":"published","published":"2026-05-06T20:40:17Z","modified":"2026-06-08T23:28:05Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:40:20.187636Z"}],"nvd":[{"id":"CVE-2026-42448","description":"Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies \"--output \u003cdir\u003e\" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.","status":"published","published":"2026-05-26T18:16:48.32Z","modified":"2026-07-24T11:10:00.17Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:20.511562Z"}],"osv":[{"id":"CVE-2026-42448","title":"wormhole receive, with --output pointing at an existing directory can be path-traversed","description":"Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies \"--output \u003cdir\u003e\" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.","status":"published","published":"2026-05-26T17:57:20.946Z","modified":"2026-10-28T02:31:08.730875615Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:04.117819Z"},{"id":"GHSA-cf92-gfcw-6v53","title":"Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed","description":"### Impact\nA receiver who specifies \"--output \u003cdir\u003e\" 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","status":"published","published":"2026-05-06T20:40:17Z","modified":"2026-07-13T16:42:43.993773357Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:44.927642Z"},{"id":"PYSEC-2026-2616","title":"Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed","description":"### Impact\nA receiver who specifies \"--output \u003cdir\u003e\" 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","status":"published","published":"2026-07-13T15:15:39.233478Z","modified":"2026-07-13T16:32:12.324034954Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T15:52:55.961245Z"},{"id":"openSUSE-SU-2026:11370-1","title":"python-magic-wormhole-bash-completion-0.24.0-1.1 on GA media","description":"These are all security issues fixed in the python-magic-wormhole-bash-completion-0.24.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-07-24T00:00:00Z","modified":"2026-07-25T18:24:27.825521274Z","updated_at":"2026-11-02T16:58:39.516824Z"}]}}