CVE-2026-3062 is a security vulnerability identified in the Tint component of Google Chrome on macOS platforms, affecting versions prior to 145.0.7632.116. Tint is involved in rendering processes, and the flaw allows an out-of-bounds read and write condition. This means that when processing a specially crafted HTML page, Chrome may access memory locations outside the allocated buffer boundaries. Such out-of-bounds memory access can lead to several critical consequences including information leakage, corruption of memory, and potentially arbitrary code execution if exploited successfully. The vulnerability is remotely exploitable by an attacker who can lure a user into visiting a malicious webpage, without requiring any prior authentication. Although no exploits have been observed in the wild yet, the Chromium security team has classified the severity as high, indicating a significant risk. The lack of a CVSS score means severity must be inferred from the nature of the flaw, its impact on confidentiality, integrity, and availability, and the ease of exploitation. The vulnerability affects only the macOS version of Chrome, limiting the scope but still posing a substantial risk given Chrome's widespread use. The patch for this vulnerability is included in Chrome version 145.0.7632.116, and users running earlier versions are vulnerable. The flaw underscores the importance of timely updates and vigilance against crafted web content that can exploit browser rendering engines.

The impact of CVE-2026-3062 is significant for organizations and individuals using Google Chrome on macOS. Successful exploitation can lead to unauthorized memory access, which may result in information disclosure of sensitive data residing in memory. More critically, memory corruption from out-of-bounds writes can enable attackers to execute arbitrary code within the context of the browser process, potentially leading to full system compromise if combined with other vulnerabilities or sandbox escapes. This can facilitate further attacks such as malware installation, data theft, or lateral movement within corporate networks. Since Chrome is a widely used browser, the vulnerability poses a broad risk to enterprises, government agencies, and end users. The requirement for user interaction (visiting a malicious webpage) means phishing or drive-by download attacks are likely vectors. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate it, as attackers may develop exploits rapidly once the vulnerability is public. Organizations with macOS endpoints, especially those in sensitive sectors like finance, healthcare, and critical infrastructure, face elevated risk. The vulnerability could also be leveraged in targeted attacks against high-value individuals or entities.

To mitigate CVE-2026-3062, organizations and users should immediately update Google Chrome on macOS to version 145.0.7632.116 or later, where the vulnerability is patched. Beyond patching, organizations should implement browser security best practices such as enabling sandboxing features, restricting browser extensions to trusted sources, and employing web content filtering to block access to known malicious sites. Network-level protections like DNS filtering and intrusion prevention systems can help reduce exposure to malicious web content. Endpoint detection and response (EDR) solutions should be tuned to detect anomalous browser behavior indicative of exploitation attempts. User education is critical to reduce the risk of social engineering attacks that lure users to crafted malicious pages. For high-security environments, consider deploying browser isolation technologies that execute web content in remote containers, preventing direct access to endpoint memory. Regular vulnerability scanning and asset inventory to identify vulnerable Chrome versions on macOS devices will help prioritize remediation efforts. Finally, monitoring threat intelligence feeds for emerging exploits related to this CVE will enable proactive defense adjustments.