{"action":"Upgrade haproxy to 2.2.16-3 or later.","affected":[{"fixed":"2.2.16-3","introduced":"0"}],"component":"haproxy","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.2.16-3"],"id":"tcs_01M5NFYXRPPFFC84V2MZBBVM2N","modified_at":"2026-10-23T18:03:32.793804231Z","published_at":"2021-09-08T17:15:12.457Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-40346","https://security-tracker.debian.org/tracker/CVE-2021-40346"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-40346","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-40346"}],"summary":"An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HA"}