Low severity · published May 26, 2026
CVE-2026-42448
wormhole receive, with --output pointing at an existing directory can be path-traversed
3.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
magic-wormhole · magic-wormhole
< 0.24.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42448
github.com
https://github.com/magic-wormhole/magic-wormhole/security/advisories/GHSA-cf92-gfcw-6v53
More from magic-wormhole
8.1
CVE-2026-32116
Magic Wormhole: "wormhole receive" allows arbitrary local file overwrite