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Case File

CVE-2020-15049

CRITICAL · CVSS 9.9 EPSS 5.71% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-06-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.9. 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-2020-15049
Severity
CRITICAL
CVSS
9.9
EPSS
5.71%

Original NVD Description

An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.

Related CVEs

Other vulnerabilities affecting the same vendor(s)