{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42342","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-26T13:26:14.514Z","datePublished":"2026-06-02T18:23:02.765Z","dateUpdated":"2026-06-03T13:52:43.400Z"},"containers":{"cna":{"title":"React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78","tags":["x_refsource_CONFIRM"],"url":"https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78"}],"affected":[{"vendor":"remix-run","product":"react-router","versions":[{"version":">= 7.0.0, < 7.15.0","status":"affected"}]},{"vendor":"remix-run","product":"@remix-run/server-runtime","versions":[{"version":">= 2.10.0, < 2.17.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-02T18:23:02.765Z"},"descriptions":[{"lang":"en","value":"React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the __manifest endpoint, resulting in response time degradation and/or service unavailability for end users. This affects React Router Framework Mode applications as well as Remix applications. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in react-router version 7.15.0 and @remix-run/server-runtime version 2.17.5."}],"source":{"advisory":"GHSA-8x6r-g9mw-2r78","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-03T13:52:31.015400Z","id":"CVE-2026-42342","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-06-03T13:52:43.400Z"}}]}}