{"schemaVersion":3,"id":"CVE-2026-53667","aliases":["CGA-2vr9-g4r7-hxc6","CGA-9rxx-rv9c-mhrm","CGA-f747-9wx2-4xq4","CGA-f9xj-57qc-9jx6","CGA-rq6j-4wvr-656x","GHSA-h8fp-f39c-q6mh","CGA-3c5r-5h3p-gv2r","CGA-h6gj-f77w-6rch","CGA-p997-x8j2-hhrf","CGA-w2pq-cg4g-xxx8"],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2026-07-27T21:21:16.084Z","modified":"2026-07-28T13:51:15.333Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.9,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.9,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Wolfi","score":6.9,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","exploitability":4.1,"impact":7.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":6.9,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","exploitability":4.1,"impact":7.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":6.9,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","exploitability":4.1,"impact":7.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00355,"percentile":0.2778,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.152,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00203},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00355,"percentile":0.2778}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00203,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00355,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00355,"percentile":0.2778}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","description":"The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/79.html"}],"affected":[{"vendor":"chainguard","product":"airflow-2","name":"airflow-2","label":"airflow-2","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/airflow-2","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"airflow-core-2","name":"airflow-core-2","label":"airflow-core-2","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/airflow-core-2","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"vitess-24","name":"vitess-24","label":"vitess-24","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/vitess-24","purlType":"apk","versions":[{"text":"< 24.0.2-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 24.0.2-r7","eol":null,"hubHref":null},{"vendor":"chainguard","product":"vitess-24-compat","name":"vitess-24-compat","label":"vitess-24-compat","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/vitess-24-compat","purlType":"apk","versions":[{"text":"< 24.0.3-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 24.0.3-r7","eol":null,"hubHref":null},{"vendor":"wolfi","product":"vitess-24","name":"vitess-24","label":"vitess-24","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/vitess-24","purlType":"apk","versions":[{"text":"< 24.0.2-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 24.0.2-r7","eol":null,"hubHref":null},{"vendor":"wolfi","product":"vitess-24-compat","name":"vitess-24-compat","label":"vitess-24-compat","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/vitess-24-compat","purlType":"apk","versions":[{"text":"< 24.0.3-r7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 24.0.3-r7","eol":null,"hubHref":null},{"vendor":"Npm","product":"react-router","name":"react-router","label":"react-router","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/react-router","purlType":"npm","versions":[{"text":"≥ 7.11.0, < 7.18.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.11.0, < 7.18.0","eol":null,"hubHref":null},{"vendor":"remix-run","product":"react-router","name":"react-router","label":"react-router","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.11.0, < 7.18.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.11.0, < 7.18.0","eol":null,"hubHref":"/vendor/remix-run/react-router"},{"vendor":"shopify","product":"react-router","name":"react-router","label":"react-router","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.11.0, < 7.18.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.11.0, < 7.18.0","eol":null,"hubHref":"/vendor/shopify/react-router"}],"affectedCount":9,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh","label":"github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh","hostname":"github.com","tags":["X Refsource CONFIRM","Advisory","WEB","Third Party Advisory"]},{"url":"https://github.com/remix-run/react-router/pull/15177","label":"github.com/remix-run/react-router/pull/15177","hostname":"github.com","tags":["X Refsource MISC","FIX","WEB","Issue Tracking","Patch"]},{"url":"https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242","label":"github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242","hostname":"github.com","tags":["X Refsource MISC","FIX","WEB","Patch"]},{"url":"https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180","label":"github.com/remix-run/react-router/blob/main/CHANGELOG.md","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0","label":"github.com/remix-run/react-router/releases/tag/react-router@7.18.0","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53667.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53667.json","hostname":"github.com","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53667","label":"nvd.nist.gov/vuln/detail/CVE-2026-53667","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/remix-run/react-router","label":"github.com/remix-run/react-router","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-VX8F-F6Q8-MFH7"]},"timeline":[{"kind":"published","date":"2026-07-27T21:21:16.084Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-28T13:51:15.333Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":28,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T10:12:51.285Z","stale":false,"partial":false}}