{"action":"Upgrade squid to 4.9-1 or later.","affected":[{"fixed":"4.9-1","introduced":"0"}],"component":"squid","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.9-1"],"id":"tcs_01M5NDRF6ZHSG8M7AVW2X1ARED","modified_at":"2026-09-21T07:02:16.399903475Z","published_at":"2019-11-26T17:15:10.843Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-12526","https://security-tracker.debian.org/tracker/CVE-2019-12526"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-12526","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-12526"}],"summary":"An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fai"}