Squid-cache Squid vulnerabilities

• squid-cache squid Squid Request Smuggling in HTTP Transfer-Encoding CVE-2026-61642 Fix available 7.7 HighOctober 13, 2026
• squid-cache squid Squid: Memory corruption in cache_digest reply handling CVE-2026-50012 Fix available 5.5 MediumJune 12, 2026
• squid-cache squid Squid: Memory disclosure in FTP gateway CVE-2026-47729 Public exploitFix available 6.5 MediumJune 12, 2026
• squid-cache squid, red hat enterprise linux 10, enterprise linux 10.0 extended update support +15 more +17 more Squid vulnerable to Denial of Service in ICP Request handling CVE-2026-33526 Fix available 9.2 CriticalMarch 26, 2026
• squid-cache squid Squid has issues in ICP message handling CVE-2026-33515 Fix available 6.9 MediumMarch 26, 2026
• squid-cache squid, red hat enterprise linux 10, enterprise linux 10.0 extended update support +15 more +17 more Squid has Denial of Service in ICP Response handling CVE-2026-32748 Fix available 8.7 HighMarch 26, 2026
• squid-cache squid Squid vulnerable to information disclosure via authentication credential leakage in error handling CVE-2025-62168 Public exploitFix available EPSS 64.8% 10.0 CriticalOctober 17, 2025
• squid-cache squid Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in... CVE-2025-59362 Fix available 4.0 MediumSeptember 26, 2025
• squid-cache squid Squid Denial of Service CVE-2024-45802 Fix available EPSS 47.9% 7.5 HighOctober 28, 2024
• squid-cache squid Squid vulnerable to heap corruption in ESI assign CVE-2024-37894 Fix available 6.3 MediumJune 25, 2024
• squid-cache squid, fedoraproject fedora, netapp bluexp +2 more SQUID-2024:1 Denial of Service in HTTP Chunked Decoding CVE-2024-25111 Fix available EPSS 65.3% 8.6 HighMarch 6, 2024
• squid-cache squid, netapp bluexp +1 more Denial of Service in HTTP Header parser in squid proxy CVE-2024-25617 Fix available EPSS 88.1% 5.3 MediumFebruary 14, 2024
• squid-cache squid SQUID-2023:11 Denial of Service in Cache Manager CVE-2024-23638 Fix available EPSS 60.1% 6.5 MediumJanuary 23, 2024
• squid-cache squid SQUID-2023:10 Denial of Service in HTTP Request parsing CVE-2023-50269 Fix available EPSS 57.6% 8.6 HighDecember 14, 2023
• squid-cache squid Squid's URN Handling can lead to Buffer Overflow CVE-2025-54574 Public exploitFix available EPSS 22.1% 9.3 CriticalDecember 6, 2023
• squid-cache squid Denial of Service in HTTP Message Processing in Squid CVE-2023-49285 Fix available EPSS 88.1% 8.6 HighDecember 4, 2023
• squid-cache squid Denial of Service in Helper Process management CVE-2023-49286 Fix available EPSS 10.4% 8.6 HighDecember 4, 2023
• squid-cache squid Denial of Service in HTTP Collapsed Forwarding in Squid CVE-2023-49288 Fix available 8.6 HighDecember 4, 2023
• squid-cache squid SQUID-2021:8 Denial of Service in Gopher gateway CVE-2023-46728 Fix available 7.5 HighNovember 6, 2023
• squid-cache squid, red hat enterprise linux 6, enterprise linux 7 +13 more +15 more Squid: dos against http and https CVE-2023-5824 Fix available 7.5 HighNovember 3, 2023
• squid-cache squid, red hat enterprise linux 6, enterprise linux 7 +7 more +9 more Squid: denial of service in ftp CVE-2023-46848 Fix available EPSS 11.4% 8.6 HighNovember 2, 2023
• squid-cache squid, red hat enterprise linux 6 extended lifecycle support, enterprise linux 7 +22 more +24 more Squid: denial of service in http digest authentication CVE-2023-46847 Fix available EPSS 78.5% 8.6 HighNovember 2, 2023
• squid-cache squid, red hat enterprise linux 6, enterprise linux 7 extended lifecycle support +18 more +20 more Squid: request/response smuggling in http/1.1 and icap CVE-2023-46846 Fix available 9.3 CriticalNovember 2, 2023
• squid-cache squid SQUID-2023:4 Denial of Service in SSL Certificate validation CVE-2023-46724 Fix available 8.6 HighNovember 1, 2023
• squid-cache squid Important: squid:4 security update CVE-2022-41318 Fix available 8.6 HighSeptember 23, 2022
• squid-cache squid squid: Fix of 2 CVEs CVE-2022-41317 Fix available 6.5 MediumSeptember 23, 2022
• squid-cache squid, debian linux +1 more Important: squid:4 security update CVE-2021-46784 Fix available 6.5 MediumDecember 31, 2021
• squid-cache squid, fedoraproject fedora +1 more An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allo… CVE-2021-41611 Fix available 7.5 HighOctober 18, 2021
• squid-cache squid, debian linux, fedoraproject fedora +2 more Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service ... CVE-2021-33620 Fix available EPSS 79.6% 6.5 MediumMay 28, 2021
• squid-cache squid, fedoraproject fedora, netapp cloud manager +2 more An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem... CVE-2021-31807 Fix available EPSS 15.6% 6.5 MediumMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +1 more +3 more An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug... CVE-2021-31808 Fix available 6.5 MediumMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +1 more +3 more An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug... CVE-2021-31806 Fix available EPSS 95.3% 6.5 MediumMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +2 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2021-28662 Fix available EPSS 71.8% 6.5 MediumMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +2 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2021-28652 Fix available 4.9 MediumMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +1 more +3 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2021-28651 Fix available 7.5 HighMay 27, 2021
• squid-cache squid, debian linux, fedoraproject fedora +1 more +3 more Important: squid:4 security update CVE-2020-25097 Fix available 8.6 HighMarch 19, 2021
• squid-cache squid, debian linux, fedoraproject fedora +2 more Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure... CVE-2021-28116 Fix available EPSS 12.9% 3.7 LowMarch 9, 2021
• squid-cache squid, canonical ubuntu linux, debian linux +2 more +4 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2020-24606 Fix available 8.6 HighAugust 24, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +2 more +4 more squid3 - security update CVE-2020-15811 Fix available 6.5 MediumAugust 24, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +2 more +4 more squid3 - security update CVE-2020-15810 Fix available 6.5 MediumAugust 24, 2020
• squid-cache squid, fedoraproject fedora, netapp cloud manager +2 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2020-14058 Fix available 7.5 HighJune 30, 2020
• squid-cache squid, fedoraproject fedora +1 more Moderate: squid:4 security, bug fix, and enhancement update CVE-2020-15049 Fix available 9.9 CriticalJune 30, 2020
• squid-cache squid Updated squid packages fix security vulnerability CVE-2020-14059 Fix available 6.5 MediumJune 26, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +2 more +4 more An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest... CVE-2020-11945 Fix available EPSS 27.2% 9.8 CriticalApril 23, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +1 more +3 more An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled,... CVE-2019-12519 Fix available 9.8 CriticalApril 15, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +2 more An issue was discovered in Squid through 4.7 and 5. When receiving a request, Squid checks its... CVE-2019-12520 Fix available 7.5 HighApril 15, 2020
• squid-cache squid An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child... CVE-2019-12522 4.5 MediumApril 15, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +1 more +3 more An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI... CVE-2019-12521 Fix available 5.9 MediumApril 15, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +2 more An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its... CVE-2019-12524 Fix available 9.8 CriticalApril 15, 2020
• squid-cache squid, canonical ubuntu linux, debian linux +1 more +3 more Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname)... CVE-2019-18860 Fix available 6.1 MediumMarch 20, 2020
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