{"action":"Upgrade xen to 4.20.2-r1 or later.","affected":[{"fixed":"4.20.2-r1","introduced":"4.6.0"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["4.20.2-r1"],"id":"tcs_01M5NFKQ812P2EWNG03MWBPRAD","modified_at":"2026-10-01T02:17:49.210413614Z","published_at":"2026-01-28T16:16:16.853Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-23553","https://security.alpinelinux.org/vuln/CVE-2026-23553"],"severity":{"label":"low","score":2.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-23553#Alpine:v3.23/xen","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-23553"}],"summary":"In the context switch logic Xen attempts to skip an IBPB in the case of"}