{"action":"Upgrade trafficserver to 8.1.1+ds-1 or later.","affected":[{"fixed":"8.1.1+ds-1","introduced":"0"}],"component":"trafficserver","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["8.1.1+ds-1"],"id":"tcs_01M5NEQXN8PTYYQWA1J398B3BM","modified_at":"2026-10-26T12:02:28.694869783Z","published_at":"2021-01-11T10:15:13.407Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-17509","https://security-tracker.debian.org/tracker/CVE-2020-17509"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-17509","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-17509"}],"summary":"ATS negative cache option is vulnerable to a cache poisoning attack. If you have this option enabled, please upgrade or disable this feature. Apache Traffic Server versions 7.0.0 to 7.1.11 and 8.0.0 t"}