{"id":"CVE-2026-59730","revision":"b2642ea82284413a9f52f5b97f320544","records":[{"revision":"b2642ea82284413a9f52f5b97f320544","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-59730","aliases":[],"title":"@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect","description":"Astro is a web framework for content-driven websites. In versions 8.1.0 through 11.0.1, when trailingSlash: 'always' is configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\\ (slash-backslash) were not recognized as internal paths, so the handler would echo the raw path back in the Location header. Because browsers treat \\ as / per the WHATWG URL specification, the resulting redirect could resolve to an external host. Preconditions for exploitation: trailingSlash: 'always' must be set (non-default; the default is 'ignore'), the request path must not have a file extension in its final segment, and an attacker must deliver the crafted link to a user. This issue has been fixed in version 11.0.2.","state":0,"publishedAt":"2026-07-27T20:00:28.662+00:00","modifiedAt":"2026-07-28T13:49:13.73+00:00","affected":[{"ecosystem":"Vendor product","name":"astro","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"withastro\",\n                    \"product\": \"astro\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 8.1.0, < 11.0.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","score":2.1,"severity":"LOW"}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-r557-wffq-wvrc","https://github.com/withastro/astro/pull/17252","https://github.com/withastro/astro/commit/eb6f97e391ee587747e37609c255c7cd4b9cce3c","https://github.com/withastro/astro/releases/tag/@astrojs/node@11.0.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59730","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-59730","identifiers":["CVE-2026-59730"]},"retained":false,"historicalAffected":[]}],"coverage":[]}