{"action":"Upgrade squid to 4.1-1 or later.","affected":[{"fixed":"4.1-1","introduced":"0"}],"component":"squid","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.1-1"],"id":"tcs_01M5NCTGGG1W4NMWJ74D8DF2BC","modified_at":"2026-10-23T18:03:17.220418658Z","published_at":"2018-02-09T23:29:00.870Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000027","https://security-tracker.debian.org/tracker/CVE-2018-1000027"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-1000027","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000027"}],"summary":"The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can res"}