SB2026061987 - CSRF in React Router

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Main Vulnerability Database SB2026061987

SB2026061987 - CSRF in React Router

Published: June 19, 2026

Security Bulletin ID SB2026061987
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site request forgery (CVE-ID: CVE-2026-22030)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to origin validation error in action and server action request processing when handling document POST requests to UI routes. A remote attacker can cause the victim's browser to send a crafted cross-site request to perform cross-site request forgery attacks.

The issue affects applications using server-side route action handlers in framework mode or React Server Actions in unstable RSC modes. Declarative mode and data mode are not affected.


Remediation

Install update from vendor's website.

References