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Github Security Blog
Github Security Blog
•added 2026/06/04 3:23 p.m.•40 views

React Router vulnerable to Denial of Service via reflected user input in single-fetch

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0...

7.5CVSS5.9AI score0.00453EPSS
SaveExploits0References6Affected Software2
OSV
OSV
•added 2026/06/04 3:23 p.m.•26 views

GHSA-RXV8-25V2-QMQ8 React Router vulnerable to Denial of Service via reflected user input in single-fetch

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0...

7.5CVSS5.9AI score0.00453EPSS
SaveExploits0References6
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