CVE-2023-27539
Possible Denial of Service Vulnerability in Rack's header parsing
5.3
MEDIUM
CVSS 3.1
EPSS 0.36%
Description
There is a denial of service vulnerability in the header parsing component of Rack.
How to fix CVE-2023-27539
To remediate CVE-2023-27539, upgrade the affected package to a fixed version below.
- Debian/ruby-rack—upgrade to 2.1.4-3+deb11u1 or later
- RubyGems/rack—upgrade to 2.2.6.4 or later
Is CVE-2023-27539 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.1.4-3+deb11u1
- >= 2.0.0, < 2.2.6.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |