CVE-2017-16115: Timespan Project Timespan

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

The timespan module is vulnerable to regular expression denial of service. Given 50k characters of untrusted user input it will block the event loop for around 10 seconds.

Affected products

Published 2018-06-07. Last modified 2026-06-17.