CVE-2020-11076 HIGH

CVE-2020-11076: HTTP Smuggling via Transfer-Encoding Header in Puma

Vendor Puma
Product puma
Weakness CWE-444
Published May 22, 2020
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

Key dates

02Disclosure timeline

May 22, 2020 CVE published
August 4, 2024 Record updated