CVE-2018-6099

CVE-2018-6099 is a medium-severity vulnerability affecting Google Chrome prior to version 66.0.3359.117, as well as Debian and Red Hat distributions. It stems from a lack of Cross-Origin Resource Sharing (CORS) checks in the Blink rendering engine, allowing a remote attacker to leak limited cross-origin data through a specially crafted HTML page. The vulnerability has a CVSS score of 6.5, indicating a high impact on confidentiality with low attack complexity, requiring user interaction. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei, or entries in ExploitDB. Community discussion and media coverage are minimal, with only one mention and one article identified.