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Vulnerabilities

Vulnerability · CVE-2026-42448

Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another.

Published May 26, 2026 · catalog updated Jul 24, 2026 · Magic Wormhole makes it

Check if you run it

No confirmed exploitation is on record for CVE-2026-42448. EPSS is 0.29%. Act only if a listed version of Magic Wormhole makes it is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Magic Wormhole makes it).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.29%
Remediation
Advisory link
Affected products
See sources for product scope

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

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-42448

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-42448. EPSS is 0.29%. Act only if a listed version of Magic Wormhole makes it is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 26, 2026 · NIST NVD

    Detected

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

  2. Jul 24, 2026 · NIST NVD

    Updated

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

Sources

  • CVE.orgVulnerability recordCVE-2026-42448

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-42448

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-42448

    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 " where that output directory currently exists (as a directory). This vulnerability

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.