CVE-2009-1904: Ruby-Lang Ruby

Medium severity, CVSS 5.0. EPSS: 12.8% chance of exploitation in the next 30 days.

The BigDecimal library in Ruby 1.8.6 before p369 and 1.8.7 before p173 allows context-dependent attackers to cause a denial of service (application crash) via a string argument that represents a large number, as demonstrated by an attempted conversion to the Float data type.

Affected products

• Ruby-Lang Ruby: version 1.8.6 only; version 1.8.7 only

Published 2009-06-11. Last modified 2026-06-16.