CVE-2015-5400

squid: information disclosure due to incorrect handling of peer responses in tunnel.cc (SQUID-2015:2)

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Severity

Low

Red Hat Product Security

2.3

CVSS 2.0

Review impact separately from score.

Published · July 6, 2015

Updated · June 19, 2026

Description

Squid before 3.5.6 does not properly handle CONNECT method peer responses when configured with cache_peer, which allows remote attackers to bypass intended restrictions and gain access to a backend proxy via a CONNECT request.

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 2.0 · 2.3
AV:A/AC:M/Au:S/C:P/I:N/A:N

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