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Path Traversal: '\..\filename'

CVE-2025-12790

High
7.4/10

Summary

A flaw was found in Rubygem MQTT. In versions through 0.6.0, by default, the package did not have hostname validation, resulting in a possible Man-In-The-Middle (MITM) attack.

  • HIGH
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-29 - Path Traversal: '\..\filename'

The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.

References

Advisory Timeline

  • Published