Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed
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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | magic-wormhole | >= 0.23.0, < 0.24.0 | 0.24.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-22- Platform
- Python (PyPI)
- Package
magic-wormhole- Disclosed
- 06.05.2026
- Updated
- 11.10.2026 14:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-2616 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cf92-gfcw-6v53 - CC BY 4.0
Vulnerability history: magic-wormhole
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 03.2026 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Low 1
Disclosures per year
- 2026: 2
-
Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed this entry
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