{"action":"Upgrade ghost to 6.21.2 or later.","affected":[{"fixed":"6.21.2","introduced":"5.18.0"}],"component":"ghost","cve_ids":["CVE-2026-53947"],"ecosystem":"npm","epss":0.00345,"exploited":false,"fixed_versions":["6.21.2"],"ghsa_id":"GHSA-chgm-3698-jm42","id":"tcs_01M5KFJV6F4WHX6B06TF8SN88F","modified_at":"2026-08-04T22:00:24.102958777Z","published_at":"2026-08-04T21:56:13Z","references":["https://osv.dev/vulnerability/GHSA-chgm-3698-jm42","https://github.com/TryGhost/Ghost/security/advisories/GHSA-chgm-3698-jm42","https://nvd.nist.gov/vuln/detail/CVE-2026-53947","https://github.com/TryGhost/Ghost/pull/26752","https://github.com/TryGhost/Ghost/commit/fb2bb634653d99de68fc42d415721d755284fe30","https://github.com/TryGhost/Ghost","https://github.com/TryGhost/Ghost/releases/tag/v6.21.1"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-chgm-3698-jm42","url":"https://osv.dev/vulnerability/GHSA-chgm-3698-jm42"}],"summary":"Ghost: Member existence leak via magic link sign-in response"}