Total
109 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2011-3205 | 1 Squid-cache | 1 Squid | 2026-04-29 | 6.8 MEDIUM | N/A |
| Buffer overflow in the gopherToHTML function in gopher.cc in the Gopher reply parser in Squid 3.0 before 3.0.STABLE26, 3.1 before 3.1.15, and 3.2 before 3.2.0.11 allows remote Gopher servers to cause a denial of service (memory corruption and daemon restart) or possibly have unspecified other impact via a long line in a response. NOTE: This issue exists because of a CVE-2005-0094 regression. | |||||
| CVE-2011-4096 | 1 Squid-cache | 1 Squid | 2026-04-29 | 5.0 MEDIUM | N/A |
| The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record. | |||||
| CVE-2010-2951 | 1 Squid-cache | 1 Squid | 2026-04-29 | 5.0 MEDIUM | N/A |
| dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid socket during an IPv4 TCP DNS query, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors that trigger an IPv4 DNS response with the TC bit set. | |||||
| CVE-2013-0189 | 2 Canonical, Squid-cache | 2 Ubuntu Linux, Squid | 2026-04-29 | 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-2010-0639 | 1 Squid-cache | 1 Squid | 2026-04-29 | 5.0 MEDIUM | N/A |
| The htcpHandleTstRequest function in htcp.c in Squid 2.x before 2.6.STABLE24 and 2.7 before 2.7.STABLE8, and htcp.cc in 3.0 before 3.0.STABLE24, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets to the HTCP port. | |||||
| CVE-2010-3072 | 1 Squid-cache | 1 Squid | 2026-04-29 | 5.0 MEDIUM | N/A |
| The string-comparison functions in String.cci in Squid 3.x before 3.1.8 and 3.2.x before 3.2.0.2 allow remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request. | |||||
| CVE-2012-2213 | 1 Squid-cache | 1 Squid | 2026-04-29 | 5.0 MEDIUM | N/A |
| Squid 3.1.9 allows remote attackers to bypass the access configuration for the CONNECT method by providing an arbitrary allowed hostname in the Host HTTP header. NOTE: this issue might not be reproducible, because the researcher is unable to provide a squid.conf file for a vulnerable system, and the observed behavior is consistent with a squid.conf file that was (perhaps inadvertently) designed to allow access based on a "req_header Host" acl regex that matches www.uol.com.br | |||||
| CVE-2010-0308 | 1 Squid-cache | 1 Squid | 2026-04-29 | 4.0 MEDIUM | N/A |
| lib/rfc1035.c in Squid 2.x, 3.0 through 3.0.STABLE22, and 3.1 through 3.1.0.15 allows remote attackers to cause a denial of service (assertion failure) via a crafted DNS packet that only contains a header. | |||||
| CVE-2012-5643 | 1 Squid-cache | 1 Squid | 2026-04-29 | 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. | |||||
| CVE-2009-2621 | 1 Squid-cache | 1 Squid | 2026-04-23 | 5.0 MEDIUM | N/A |
| Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 does not properly enforce "buffer limits and related bound checks," which allows remote attackers to cause a denial of service via (1) an incomplete request or (2) a request with a large header size, related to (a) HttpMsg.cc and (b) client_side.cc. | |||||
| CVE-2009-2622 | 1 Squid-cache | 1 Squid | 2026-04-23 | 5.0 MEDIUM | N/A |
| Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 allows remote attackers to cause a denial of service via malformed requests including (1) "missing or mismatched protocol identifier," (2) missing or negative status value," (3) "missing version," or (4) "missing or invalid status number," related to (a) HttpMsg.cc and (b) HttpReply.cc. | |||||
| CVE-2009-2855 | 1 Squid-cache | 1 Squid | 2026-04-23 | 5.0 MEDIUM | N/A |
| The strListGetItem function in src/HttpHeaderTools.c in Squid 2.7 allows remote attackers to cause a denial of service via a crafted auth header with certain comma delimiters that trigger an infinite loop of calls to the strcspn function. | |||||
| CVE-2005-0211 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2026-04-16 | 7.5 HIGH | N/A |
| Buffer overflow in wccp.c in Squid 2.5 before 2.5.STABLE7 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long WCCP packet, which is processed by a recvfrom function call that uses an incorrect length parameter. | |||||
| CVE-2026-33515 | 1 Squid-cache | 1 Squid | 2026-03-31 | N/A | 6.5 MEDIUM |
| Squid is a caching proxy for the Web. Prior to version 7.5, due to improper input validation, Squid is vulnerable to out of bounds read when handling ICP traffic. This problem allows a remote attacker to receive small amounts of memory potentially containing sensitive information when responding with errors to invalid ICP requests. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem cannot be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch. | |||||
| CVE-2026-33526 | 1 Squid-cache | 1 Squid | 2026-03-31 | N/A | 7.5 HIGH |
| Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch. | |||||
| CVE-2026-32748 | 1 Squid-cache | 1 Squid | 2026-03-26 | N/A | 7.5 HIGH |
| Squid is a caching proxy for the Web. Prior to version 7.5, due to premature release of resource during expected lifetime and heap Use-After-Free bugs, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. This bug is fixed in Squid version 7.5. | |||||
| CVE-2025-62168 | 1 Squid-cache | 1 Squid | 2025-11-05 | N/A | 10.0 CRITICAL |
| Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off. | |||||
| CVE-2025-54574 | 1 Squid-cache | 1 Squid | 2025-11-05 | N/A | 9.3 CRITICAL |
| Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions. | |||||
| CVE-2019-18860 | 4 Canonical, Debian, Opensuse and 1 more | 4 Ubuntu Linux, Debian Linux, Leap and 1 more | 2025-11-05 | 4.3 MEDIUM | 6.1 MEDIUM |
| Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi. | |||||
| CVE-2024-45802 | 1 Squid-cache | 1 Squid | 2025-11-03 | N/A | 7.5 HIGH |
| Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to Input Validation, Premature Release of Resource During Expected Lifetime, and Missing Release of Resource after Effective Lifetime bugs, Squid is vulnerable to Denial of Service attacks by a trusted server against all clients using the proxy. This bug is fixed in the default build configuration of Squid version 6.10. | |||||