There is a possible denial of service vulnerability in the Range header
parsing component of Rack. This vulnerability has been assigned the CVE
identifier CVE-2022-44570.

Versions Affected: >= 1.5.0
Not affected: None.
Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.4.1

Impact

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.

Workarounds

There are no feasible workarounds for this issue.