{"action":"Upgrade xen to 4.20.4-r1 or later.","affected":[{"fixed":"4.20.4-r1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["4.20.4-r1"],"id":"tcs_01M5NG055GND8ARF41GC2VH9RQ","modified_at":"2026-10-01T02:17:49.412318338Z","published_at":"2026-09-08T13:17:27.253Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-79603","https://security.alpinelinux.org/vuln/CVE-2026-79603"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-79603#Alpine:v3.23/xen","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-79603"}],"summary":"x86 PV guests can free memory pages while still keeping a stale TLB entry"}