CVE-2026-100230

Summary

Input Leap (aka input-leap) through 3.0.3, when the non-default –enable-drag-drop option is used on Windows or macOS, mishandles the / versus \ distinction and allows directory traversal, with resultant code execution if a file is written to a startup directory. This occurs via a DDRG message.

Affected Software

Weaknesses

• CWE-180: CWE-180 Incorrect Behavior Order: Validate Before Canonicalize

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/input-leap/input-leap/blob/v3.0.3/src/lib/inputleap/DragInformation.cpp
• https://github.com/input-leap/input-leap/blob/master/src/lib/inputleap/DropHelper.cpp
• https://raw.githubusercontent.com/input-leap/input-leap/v3.0.3/src/lib/server/Server.cpp
• https://raw.githubusercontent.com/input-leap/input-leap/master/src/lib/inputleap/ArgParser.cpp
• https://raw.githubusercontent.com/input-leap/input-leap/master/src/lib/net/SecureSocket.cpp
• https://github.com/input-leap/input-leap/releases
• https://raw.githubusercontent.com/debauchee/barrier/master/src/lib/barrier/DragInformation.cpp
• https://nvd.nist.gov/vuln/detail/CVE-2021-42072
• https://github.com/deskflow/deskflow/security/advisories
• https://www.openwall.com/lists/oss-security/2026/09/25/4

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