VULNERABILITY INTELLIGENCE
CVE-2015-5400
CVSS score6.8 MEDIUM
EPSS probability20.84%
CISA KEVNot currently listed
Published2015-09-28
Last modified2026-06-17
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P
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.