CVE-2012-4522: Ruby-Lang Ruby

Medium severity, CVSS 5.0. EPSS: 2.2% chance of exploitation in the next 30 days.

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

Affected products

• Ruby-Lang Ruby: version 1.9.3 only; version 2.0.0 only

Published 2012-11-24. Last modified 2026-06-16.