CVE-2019-16779: Debian Linux

Medium severity, CVSS 5.9. EPSS: 1.7% chance of exploitation in the next 30 days.

In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.

Affected products

Published 2019-12-16. Last modified 2026-07-28.