{"action":"Upgrade @tinacms/cli to 2.5.2 or later.","affected":[{"fixed":"2.5.2","introduced":"0"}],"component":"@tinacms/cli","cve_ids":["CVE-2026-63123"],"ecosystem":"npm","epss":0.00264,"exploited":false,"fixed_versions":["2.5.2"],"ghsa_id":"GHSA-rgr9-r7mj-mf6x","id":"tcs_01M5KG92ZXKSACZDJAXX87J66H","modified_at":"2026-08-21T18:45:12.880231633Z","published_at":"2026-08-19T21:56:36Z","references":["https://osv.dev/vulnerability/GHSA-rgr9-r7mj-mf6x","https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x","https://nvd.nist.gov/vuln/detail/CVE-2026-63123","https://github.com/tinacms/tinacms/pull/7111","https://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260","https://github.com/tinacms/tinacms","https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-rgr9-r7mj-mf6x","url":"https://osv.dev/vulnerability/GHSA-rgr9-r7mj-mf6x"}],"summary":"Tina: Cross-origin `POST /media/upload/*` requests can write arbitrary files into the Tina dev server media root"}