{"action":"Upgrade astro to 6.4.6 or later.","affected":[{"fixed":"6.4.6","introduced":"0"}],"component":"astro","cve_ids":["CVE-2026-54298"],"ecosystem":"npm","epss":0.00228,"exploited":false,"fixed_versions":["6.4.6"],"ghsa_id":"GHSA-jrpj-wcv7-9fh9","id":"tcs_01M5KFYVFX4BJ958K55S188PD0","modified_at":"2026-07-18T17:30:29.150375911Z","published_at":"2026-06-16T14:57:21Z","references":["https://osv.dev/vulnerability/GHSA-jrpj-wcv7-9fh9","https://github.com/withastro/astro/security/advisories/GHSA-jrpj-wcv7-9fh9","https://nvd.nist.gov/vuln/detail/CVE-2026-54298","https://github.com/withastro/astro"],"severity":{"label":"medium","score":4.2},"sources":[{"source":"osv","source_id":"GHSA-jrpj-wcv7-9fh9","url":"https://osv.dev/vulnerability/GHSA-jrpj-wcv7-9fh9"}],"summary":"Astro: XSS via Unescaped Attribute Names in Spread Props"}