{"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"}}]}}