CVE-2026-53667
🔶 mediumSummary
React Router is a router for React. In versions 7.11.0 through 7.17.0, the RSCErrorHandler is missing protocol validation, allowing for redirects from untrusted sources. This issue is a follow up to CVE-2026-53667, and only affects consuming applications if they are using the unstable RSC APIs. This issue has been fixed in version 7.18.0.
CVSS Score
6.9
Medium
EPSS Score
0.4
Exploit Probability
Published Date
2026-07-27
First Seen: 2026-07-31
📊 Relative Risk Intelligence
This CVE is Moderate Risk - more severe than 50.6% of all 340,405 vulnerabilities in our database.
#168,115
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jul 28, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by
CISA
Last Modified
2026-07-28
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
CWE IDs (Weakness Types)