AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2020-11076

HIGH · CVSS 7.5 EPSS 3.98% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-05-22 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-11076
Severity
HIGH
CVSS
7.5
EPSS
3.98%

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)