CVE-2026-0902 is a vulnerability identified in the V8 JavaScript engine component of Google Chrome prior to version 144.0.7559.59. The flaw arises from an inappropriate implementation in V8 that allows a remote attacker to trigger an out-of-bounds memory read by crafting a malicious HTML page. When a user visits such a page, the vulnerability can be exploited to read memory outside the intended bounds, potentially leaking sensitive information such as browser memory contents or other data resident in memory. This type of vulnerability primarily impacts confidentiality, as it does not directly allow code execution or modification of data but can expose sensitive information that may be leveraged in further attacks. Exploitation requires user interaction, specifically visiting a malicious webpage, but does not require prior authentication or elevated privileges. No known exploits have been reported in the wild at the time of publication, but the vulnerability is classified as medium severity by Chromium security. The lack of a CVSS score necessitates an independent severity assessment. The vulnerability affects all Chrome users on versions prior to 144.0.7559.59, which is a widely deployed browser globally. The patch involves updating Chrome to version 144.0.7559.59 or later, where the implementation flaw in V8 has been corrected to prevent out-of-bounds reads. This vulnerability highlights the importance of timely browser updates and cautious browsing behavior to mitigate risks from malicious web content.

For European organizations, this vulnerability poses a risk primarily to confidentiality, as sensitive information could be exposed through out-of-bounds memory reads. Organizations in sectors such as finance, healthcare, government, and critical infrastructure that rely heavily on Chrome for web access could face data leakage risks if users visit malicious sites. While the vulnerability does not directly compromise system integrity or availability, the information gained could facilitate further targeted attacks or social engineering campaigns. The requirement for user interaction means phishing or drive-by download attacks could be vectors. Given the widespread use of Chrome across Europe, the potential impact is significant, especially in environments where sensitive data is accessed via web applications. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits over time. Failure to patch promptly could lead to increased exposure, particularly in countries with high Chrome adoption and critical digital infrastructure.

European organizations should prioritize updating all instances of Google Chrome to version 144.0.7559.59 or later without delay to remediate the vulnerability. Implement enterprise-wide patch management policies that enforce timely browser updates. Employ web filtering and threat intelligence solutions to block access to known malicious websites that could host crafted HTML pages exploiting this vulnerability. Educate users about the risks of visiting untrusted websites and the importance of cautious browsing behavior. Consider deploying browser security extensions or sandboxing technologies that limit the impact of potential memory corruption vulnerabilities. Monitor network traffic and endpoint logs for unusual activity that could indicate exploitation attempts. For high-risk environments, consider restricting browser usage to managed and controlled environments where updates and security configurations can be strictly enforced. Regularly review and update incident response plans to include scenarios involving browser-based memory vulnerabilities.