{"action":"Upgrade xen to 4.15.1-r1 or later.","affected":[{"fixed":"4.15.1-r1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.18","exploited":false,"fixed_versions":["4.15.1-r1"],"id":"tcs_01M5ND4EXJZ4KZVC87DFQ3SZ26","modified_at":"2026-10-23T17:17:56.177238407Z","published_at":"2021-12-07T12:15:08.610Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-28703","https://security.alpinelinux.org/vuln/CVE-2021-28703"],"severity":{"label":"high","score":7},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-28703#Alpine:v3.18/xen","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-28703"}],"summary":"grant table v2 status pages may remain accessible after de-allocation (take two) Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associat"}