CVE-2024-21647CWE-444

HTTP Request/Response Smuggling in puma

Medium · published January 8, 2024

CVSS v3.1
5.9
EPSS
1%
Percentile
61.1
In the wild
Unconfirmed
What it is

Puma is a web server for Ruby/Rack applications built for parallelism. Prior to version 6.4.2, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies in a way that allowed HTTP request smuggling. Fixed versions limits the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption. This vulnerability has been fixed in versions 6.4.2 and 5.6.8.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00958 · 61.1th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2024-01-08T13:45Z
EPSS history
Timeline
  • 08 JAN 13:45Z
    HTTP Request/Response Smuggling in puma
    cvelistv5