{"schemaVersion":3,"id":"CVE-2026-33526","aliases":["UBUNTU-CVE-2026-33526","DEBIAN-CVE-2026-33526"],"status":"published","duplicateOf":null,"title":null,"description":"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. 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