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CVE-2026-34077

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1e0a983e80727af8d30a46589ea9ece20cfdf143ca6160845789726640303a92
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"react-router","vendor":"remix-run","versions":[{"status":"affected","version":">= 7.0.0, < 7.14.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/affected/0

{"product":"turbo-stream","vendor":"remix-run","versions":[{"status":"affected","version":"< 3.0.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"react-router","vendor":"remix-run","versions":[{"status":"affected","version":">= 7.0.0, < 7.14.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/affected/0
{"product":"turbo-stream","vendor":"remix-run","versions":[{"status":"affected","version":"< 3.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/remix-run/react-router/security/advisories/GHSA-rxv8-25v2-qmq8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/remix-run/react-router/security/advisories/GHSA-rxv8-25v2-qmq8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d9840e78400c109f49df6033e598d7aaeb5fb335256142ea443a706ec6f2336 · sha256:ef94d69ebe01cac1… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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