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Case File

CVE-2019-18677

MEDIUM · CVSS 6.1 EPSS 7.24% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-11-26 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.1. 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.

GitHub PoC Links

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

CVE
CVE-2019-18677
Severity
MEDIUM
CVSS
6.1
EPSS
7.24%

Original NVD Description

An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.

Related CVEs

Other vulnerabilities affecting the same vendor(s)