Vulnerabilities (CVE)

Filtered by vendor Squid-cache Subscribe
Total 111 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2016-2571 1 Squid-cache 1 Squid 2026-06-17 5.0 MEDIUM 7.5 HIGH
http.cc in Squid 3.x before 3.5.15 and 4.x before 4.0.7 proceeds with the storage of certain data after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response.
CVE-2016-2570 1 Squid-cache 1 Squid 2026-06-17 5.0 MEDIUM 7.5 HIGH
The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.
CVE-2016-2569 1 Squid-cache 1 Squid 2026-06-17 5.0 MEDIUM 7.5 HIGH
Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not properly append data to String objects, which allows remote servers to cause a denial of service (assertion failure and daemon exit) via a long string, as demonstrated by a crafted HTTP Vary header.
CVE-2016-2390 1 Squid-cache 1 Squid 2026-06-17 4.3 MEDIUM 5.9 MEDIUM
The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.
CVE-2016-10003 1 Squid-cache 1 Squid 2026-06-17 5.0 MEDIUM 7.5 HIGH
Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients.
CVE-2016-10002 2 Debian, Squid-cache 2 Debian Linux, Squid 2026-06-17 5.0 MEDIUM 7.5 HIGH
Incorrect processing of responses to If-None-Modified HTTP conditional requests in Squid HTTP Proxy 3.1.10 through 3.1.23, 3.2.0.3 through 3.5.22, and 4.0.1 through 4.0.16 leads to client-specific Cookie data being leaked to other clients. Attack requests can easily be crafted by a client to probe a cache for this information.
CVE-2015-5400 3 Debian, Fedoraproject, Squid-cache 3 Debian Linux, Fedora, Squid 2026-06-17 6.8 MEDIUM N/A
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.
CVE-2015-3455 3 Fedoraproject, Oracle, Squid-cache 4 Fedora, Linux, Solaris and 1 more 2026-06-17 2.6 LOW N/A
Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.
CVE-2015-0881 1 Squid-cache 1 Squid 2026-06-17 4.3 MEDIUM N/A
CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.
CVE-2014-9749 2 Opensuse, Squid-cache 2 Opensuse, Squid 2026-06-17 4.0 MEDIUM N/A
Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used, allow remote authenticated users to retain access by leveraging a stale nonce, aka "Nonce replay vulnerability."
CVE-2014-7142 3 Canonical, Oracle, Squid-cache 3 Ubuntu Linux, Solaris, Squid 2026-06-17 6.4 MEDIUM N/A
The pinger in Squid 3.x before 3.4.8 allows remote attackers to obtain sensitive information or cause a denial of service (crash) via a crafted (1) ICMP or (2) ICMP6 packet size.
CVE-2014-7141 1 Squid-cache 1 Squid 2026-06-17 6.4 MEDIUM N/A
The pinger in Squid 3.x before 3.4.8 allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and crash) via a crafted type in an (1) ICMP or (2) ICMP6 packet.
CVE-2014-6270 2 Oracle, Squid-cache 2 Solaris, Squid 2026-06-17 6.8 MEDIUM N/A
Off-by-one error in the snmpHandleUdp function in snmp_core.cc in Squid 2.x and 3.x, when an SNMP port is configured, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted UDP SNMP request, which triggers a heap-based buffer overflow.
CVE-2014-3609 1 Squid-cache 1 Squid 2026-06-17 5.0 MEDIUM N/A
HttpHdrRange.cc in Squid 3.x before 3.3.12 and 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via a request with crafted "Range headers with unidentifiable byte-range values."
CVE-2014-0128 2 Opensuse, Squid-cache 2 Opensuse, Squid 2026-06-17 5.0 MEDIUM N/A
Squid 3.1 before 3.3.12 and 3.4 before 3.4.4, when SSL-Bump is enabled, allows remote attackers to cause a denial of service (assertion failure) via a crafted range request, related to state management.
CVE-2013-4123 2 Opensuse, Squid-cache 2 Opensuse, Squid 2026-06-16 5.0 MEDIUM N/A
client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.
CVE-2013-4115 2 Opensuse, Squid-cache 2 Opensuse, Squid 2026-06-16 7.5 HIGH N/A
Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.
CVE-2013-1839 1 Squid-cache 1 Squid 2026-06-16 7.8 HIGH N/A
The strHdrAcptLangGetItem function in errorpage.cc in Squid 3.2.x before 3.2.9 and 3.3.x before 3.3.3 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a "," character in an Accept-Language header.
CVE-2013-0189 2 Canonical, Squid-cache 2 Ubuntu Linux, Squid 2026-06-16 5.0 MEDIUM N/A
cachemgr.cgi in Squid 3.1.x and 3.2.x, possibly 3.1.22, 3.2.4, and other versions, allows remote attackers to cause a denial of service (resource consumption) via a crafted request. NOTE: this issue is due to an incorrect fix for CVE-2012-5643, possibly involving an incorrect order of arguments or incorrect comparison.
CVE-2012-5643 1 Squid-cache 1 Squid 2026-06-16 5.0 MEDIUM N/A
Multiple memory leaks in tools/cachemgr.cc in cachemgr.cgi in Squid 2.x and 3.x before 3.1.22, 3.2.x before 3.2.4, and 3.3.x before 3.3.0.2 allow remote attackers to cause a denial of service (memory consumption) via (1) invalid Content-Length headers, (2) long POST requests, or (3) crafted authentication credentials.