{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53667", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T20:50:36.877Z", "datePublished": "2026-07-27T21:21:16.084Z", "dateUpdated": "2026-07-27T21:21:16.084Z"}, "containers": {"cna": {"title": "React Router: Cross-site Scripting is Possible due to Missing RSCErrorHandler Protocol Validation (Incomplete fix for CVE-2026-53667)", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh"}, {"name": "https://github.com/remix-run/react-router/pull/15177", "tags": ["x_refsource_MISC"], "url": "https://github.com/remix-run/react-router/pull/15177"}, {"name": "https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242", "tags": ["x_refsource_MISC"], "url": "https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242"}, {"name": "https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180", "tags": ["x_refsource_MISC"], "url": "https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180"}, {"name": "https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0"}], "affected": [{"vendor": "remix-run", "product": "react-router", "versions": [{"version": ">= 7.11.0, < 7.18.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-27T21:21:16.084Z"}, "descriptions": [{"lang": "en", "value": "React Router is a router for React. In versions 7.11.0 through 7.17.0, the RSCErrorHandler is missing protocol validation, allowing for redirects from untrusted sources. This issue is a follow up to CVE-2026-53667, and only affects consuming applications if they are using the unstable RSC APIs. This issue has been fixed in version 7.18.0."}], "source": {"advisory": "GHSA-h8fp-f39c-q6mh", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.11.0,7.18.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "react-router", "source": "cna", "vendor": "remix-run"}, "product": "react-router", "vendor": "remix-run"}], "created": "2026-07-28T00:45:02.802963+00:00", "updated": "2026-07-28T00:45:02.802982+00:00", "vendors": ["remix-run", "remix-run$PRODUCT$react-router"]}