{"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:14","exploited":false,"fixed_versions":["4.13-10"],"id":"tcs_01M5NFQTTWNM2NWCNVBYY5GP9Y","modified_at":"2026-10-23T18:03:15.030469254Z","published_at":"2021-05-28T12:15:07.697Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-33620","https://security-tracker.debian.org/tracker/CVE-2021-33620"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-33620#Debian:14/squid","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-33620"}],"summary":"Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expect"}