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CVE-2025-43864

React Router allows a DoS via cache poisoning by forcing SPA mode

Published: Apr 25, 2025Updated: Apr 29, 2025 Sources: CVE List NVD GHSA BDUCWE-755
7.5HIGH
NVD MITRE
EPSS Score
22.0%
Top 2.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an error that completely corrupts the page. If a cache system is in place, this allows the response containing the error to be cached, resulting in a cache poisoning that strongly impacts the availability of the application. This issue has been patched in version 7.5.2.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-755

Affected Products

react-routerremix-run
Library
OSS Libraries / web-framework
react-routernpmOSS Libraries
React RouterСообщество свободного программного обеспечения
On-premLibrary
OSS Libraries / web-framework
remix-runoss-projectOSS Libraries
npmpackage-ecosystemOSS Libraries
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://github.com/remix-run/react-router/security/advisories/GHSA-f46r-rw29-r322
github.com
https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111
github.com
https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/server.ts#L407
github.com
and 3 more references View all →

Timeline

Published
Apr 25, 2025
Last Updated
Apr 29, 2025

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