{"cve":"CVE-2026-59731","nvd":{"published":"2026-07-08T17:17:25.937","modified":"2026-10-25T17:10:00.197","status":"Deferred","description":"Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI() operation and can resolve the request to a protected route. This issue is fixed in version 6.4.8.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":8.2},"cwes":["CWE-647"],"references":["https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab6785","https://github.com/withastro/astro/pull/17109","https://github.com/withastro/astro/releases/tag/astro@6.4.8","https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv","https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-59731","score":0.00466,"percentile":0.40038,"date":"2026-10-25"},"kev":null,"osv":[{"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","modified":"2026-07-20T22:00:25.354910731Z","packages":[{"ecosystem":"npm","name":"astro","purl":"pkg:npm/astro","ranges":[">=6.4.7 <6.4.8"],"fixed":["6.4.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}