{"id":"CLSA-2026-1777446517","summary":"squid: Fix of 3 CVEs","details":"- CVE-2019-12521: fix ESI parser off-by-one heap overflow by enforcing a\n  stack-depth limit and throwing on overflow\n- CVE-2019-12524 already addressed by the CVE-2019-12520 backport (same\n  fix upstream; see Squid advisory SQUID-2019:4)","modified":"2026-06-01T00:33:16.957241524Z","published":"2026-04-29T07:08:43Z","upstream":["CVE-2019-12521","CVE-2019-12524","CVE-2019-12520"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos6els/CLSA-2026-1777446517.html"}],"affected":[{"package":{"name":"squid","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/squid?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.1.23-30.el6.tuxcare.els18"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1777446517.json"}}],"schema_version":"1.7.5"}