Description
An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.
References (9)
Scores
CVSS v3
8.6
EPSS
0.0058
EPSS Percentile
69.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Details
CWE
CWE-444
CWE-20
Status
published
Products (6)
debian/debian_linux
10.0
fedoraproject/fedora
32
fedoraproject/fedora
33
fedoraproject/fedora
34
netapp/cloud_manager
squid-cache/squid
2.0 - 4.14
Published
Mar 19, 2021
Tracked Since
Feb 18, 2026