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React Router contains a vulnerability affecting versions starting at 7.2.0 and before 7.5.2 where an attacker can add a request header that causes an application to switch from server-side rendering (SSR) to single-page application (SPA) mode. In deployments that rely on SSR, forcing SPA mode triggers an error condition that corrupts the rendered page. When the application is deployed behind a caching layer, the erroneous response can be stored and subsequently served to other users, creating a cache poisoning condition that degrades application availability. The issue is fixed in React Router 7.5.2.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.