[GHSA-qwww-vcr4-c8h2] React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response

[acastlesibm]

Summary

Updates advisory GHSA-qwww-vcr4-c8h2 for react-router to include the complete set of affected version ranges and their corresponding fixes.

The advisory previously only captured the fix for the 8.x line (8.3.0) but was missing the fix entry for 7.x (7.18.2) and the introduction boundary for the 8.x range (8.0.0), leaving users on react-router@7.12.0–7.18.1 without a clear remediation path.

Changes

• Add fixed: 7.18.2 for the >= 7.12.0 range
• Add introduced boundary 8.0.0 for the 8.x range (already had fixed: 8.3.0)

Advisory details

Field	Value
ID	GHSA-qwww-vcr4-c8h2
Package	react-router (npm)
Severity	Medium (CVSS v4 4.0)
Summary	RSC Mode CSRF Bypass — allows action execution before 400 response
Follow-up to	CVE-2026-22030
Reference	GHSA-qwww-vcr4-c8h2