CVE-2022-44571: Rack

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

There is a denial of service vulnerability in the Content-Disposition parsingcomponent of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1. This could allow an attacker to craft an input that can cause Content-Disposition header parsing in Rackto take an unexpected amount of time, possibly resulting in a denial ofservice attack vector. This header is used typically used in multipartparsing. Any applications that parse multipart posts using Rack (virtuallyall Rails applications) are impacted.

Affected products

• Rack Rack: from 2.0.0, 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 3.0.0.0, before 3.0.4.1 (fixed in 3.0.4.1)

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