CVE-2022-44570: Rack

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.

Affected products

• Rack Rack: from 1.5.0, before 2.0.9.2 (fixed in 2.0.9.2); from 2.1.0, before 2.1.4.2 (fixed in 2.1.4.2); from 2.2.0, before 2.2.6.1 (fixed in 2.2.6.1); from 3.0.0, before 3.0.4.1 (fixed in 3.0.4.1)

Published 2023-02-09. Last modified 2026-06-17.