{"action":"Upgrade squid to 4.13-10 or later.","affected":[{"fixed":"4.13-10","introduced":"0"}],"component":"squid","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.13-10"],"id":"tcs_01M5NFNVR2FKWWYR856D1370NE","modified_at":"2026-10-23T18:03:26.542583619Z","published_at":"2021-05-27T14:15:07.500Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-31808","https://security-tracker.debian.org/tracker/CVE-2021-31808"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-31808","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-31808"}],"summary":"An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends"}