CVE-2026-97875: Rojo-Rbx Rojo

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Rojo's "rojo serve" HTTP API (default port 34872) has no Host/Origin header validation, making it vulnerable to DNS rebinding. A malicious webpage can read all project source, write malicious code to files on disk, and launch local programs via opener::open() with no user interaction beyond visiting the page.

Affected products

• Rojo-Rbx Rojo: before 7.7.0 (fixed in 7.7.0)

Published 2026-09-25. Last modified 2026-09-30.