Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed

低危 3.5CVE-2026-42448 · GHSA-cf92-gfcw-6v53 · PYSEC-2026-2616 · Published 26/05/2026 · updated 24/07/2026

要点

CVE-2026-42448 是影响 magic-wormhole 的低危 (CVSS 3.5)漏洞。
未来 30 天内被利用的概率（EPSS）：0.20%，高于 9.4% 的漏洞。
修复：升级到 0.24.0 或更高版本。

Package	Affected versions	Patched versions
magic-wormhole PyPI	`≥ 0.23.0, < 0.24.0`	`0.24.0`

Description

Impact

A receiver who specifies "--output <dir>" where that output directory currently exists (as a directory).

Patches

0.24.0 will contain the patch

Workarounds

Ensure local target directories specified by "--output" do not already exist

Resources

Private email and Signal communications from a user. Magic Wormhole thanks @marduc812

NVD 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 <dir>" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.

References

magic-wormhole/magic-wormhole security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2026-42448 · ADVISORY
magic-wormhole/magic-wormhole · PACKAGE
pypi.org/project/magic-wormhole · PACKAGE
GitHub Advisory GHSA-cf92-gfcw-6v53 · ADVISORY

magic-wormhole 的其他漏洞

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Package

Affected versions

Patched versions

magic-wormhole

PyPI

≥ 0.23.0, < 0.24.0

0.24.0

Description

Impact

A receiver who specifies "--output <dir>" where that output directory currently exists (as a directory).

Patches

0.24.0 will contain the patch

Workarounds

Ensure local target directories specified by "--output" do not already exist

Resources

Private email and Signal communications from a user. Magic Wormhole thanks @marduc812

NVD description