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CVE-2026-53663

React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass

Published: Jun 22, 2026Updated: Jun 23, 2026 Sources: CVE List NVDCWE-352
3.1LOW
NVD MITRE
EPSS Score
0.1%
Top 98.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-352

Affected Products

react-routerremix-run
Library
OSS Libraries / web-framework
server-runtime@remix-run
Library
OSS Libraries / web-framework
remix-runoss-projectOSS Libraries
@remix-runoss-projectOSS Librariesaka remix-run, remix

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/remix-run/react-router/security/advisories/GHSA-84g9-w2xq-vcv6
github.com

Timeline

Published
Jun 22, 2026
Last Updated
Jun 23, 2026

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