CVE-2023-46846

squid: Request/Response smuggling in HTTP/1.1 and ICAP

Loading…

Severity

Important

Red Hat Product Security

9.3

CVSS 3.1

Review impact separately from score.

Published · October 19, 2023

Updated · February 26, 2026

Description

SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.

Statement

This attack is limited to the HTTP/1.1 and ICAP protocols which support receiving Transfer-Encoding:chunked.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')