{"action":"Upgrade astro to 6.4.8 or later.","affected":[{"fixed":"6.4.8","introduced":"6.4.7"}],"component":"astro","cve_ids":["CVE-2026-59731"],"ecosystem":"npm","epss":0.00466,"exploited":false,"fixed_versions":["6.4.8"],"ghsa_id":"GHSA-vj59-8hwv-xxmv","id":"tcs_01M5KGC3Q82TMZA35TRQXKG4TH","modified_at":"2026-07-20T22:00:25.354910731Z","published_at":"2026-07-20T21:58:27Z","references":["https://osv.dev/vulnerability/GHSA-vj59-8hwv-xxmv","https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv","https://nvd.nist.gov/vuln/detail/CVE-2026-59731","https://github.com/withastro/astro/pull/17109","https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab6785","https://github.com/withastro/astro","https://github.com/withastro/astro/releases/tag/astro@6.4.8"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-vj59-8hwv-xxmv","url":"https://osv.dev/vulnerability/GHSA-vj59-8hwv-xxmv"}],"summary":"Astro: Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch"}