| Package | Affected versions | Patched versions |
|---|---|---|
| rack | ≥ 2.0.0, < 2.2.6.4≥ 3.0.0, < 3.0.6.1 | 2.2.6.43.0.6.1 |
| rack | ≥ 2.0.0, < 2.2.6.4≥ 3.0.0, < 3.0.6.1 | 2.2.6.43.0.6.1 |
There is a denial of service vulnerability in the header parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27539.
Versions Affected: >= 2.0.0 Not affected: None. Fixed Versions: 2.2.6.4, 3.0.6.1
Carefully crafted input can cause header parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse headers using Rack (virtually all Rails applications) are impacted.
Setting Regexp.timeout in Ruby 3.2 is a possible workaround.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free