{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59730", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-06T15:34:16.917Z", "datePublished": "2026-07-27T20:00:28.662Z", "dateUpdated": "2026-07-28T13:49:13.730Z"}, "containers": {"cna": {"title": "@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect", "problemTypes": [{"descriptions": [{"cweId": "CWE-601", "lang": "en", "description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 2.1, "baseSeverity": "LOW", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/withastro/astro/security/advisories/GHSA-r557-wffq-wvrc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/withastro/astro/security/advisories/GHSA-r557-wffq-wvrc"}, {"name": "https://github.com/withastro/astro/pull/17252", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/pull/17252"}, {"name": "https://github.com/withastro/astro/commit/eb6f97e391ee587747e37609c255c7cd4b9cce3c", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/commit/eb6f97e391ee587747e37609c255c7cd4b9cce3c"}, {"name": "https://github.com/withastro/astro/releases/tag/@astrojs/node@11.0.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/releases/tag/@astrojs/node@11.0.2"}], "affected": [{"vendor": "withastro", "product": "astro", "versions": [{"version": ">= 8.1.0, < 11.0.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-27T20:00:28.662Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-r557-wffq-wvrc", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-28T13:48:33.961696Z", "id": "CVE-2026-59730", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-28T13:49:13.730Z"}}]}}

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