CVE-2025-46282 is a security vulnerability identified in Apple Safari prior to version 26.2 and macOS Tahoe 26.2. The root cause is insufficient permissions checks within the browser, which could allow a local app to access sensitive user data without requiring elevated privileges. The vulnerability falls under CWE-284, indicating an access control weakness. The attack vector is local, meaning the attacker must have local access to the device, and user interaction is required to trigger the exploit. The vulnerability impacts confidentiality by potentially exposing sensitive user data but does not affect data integrity or system availability. Apple addressed this issue by implementing additional permissions checks in Safari 26.2 and macOS Tahoe 26.2 to prevent unauthorized data access. There are no known exploits in the wild, suggesting limited active exploitation currently. However, the vulnerability poses a risk to user privacy and data security if exploited. The CVSS v3.1 base score is 5.5, reflecting a medium severity level due to the combination of local attack vector, no privileges required, and user interaction needed. This vulnerability highlights the importance of strict access control enforcement in web browsers to protect sensitive information from local threats.

The potential impact of CVE-2025-46282 is the unauthorized disclosure of sensitive user data on devices running vulnerable versions of Safari and macOS. This could lead to privacy breaches, leakage of personal or corporate information, and potential follow-on attacks if sensitive credentials or data are exposed. Since the exploit requires local access and user interaction, remote attackers face higher barriers, but insider threats or malware with local presence could leverage this vulnerability. Organizations with employees or users running outdated Safari versions risk data exposure, which could undermine trust and lead to regulatory or compliance issues, especially in privacy-sensitive sectors such as finance, healthcare, and government. The lack of impact on integrity and availability limits the scope to confidentiality concerns, but the sensitivity of data involved makes this a significant risk. The absence of known exploits in the wild reduces immediate urgency but does not eliminate the threat, as attackers could develop exploits targeting this flaw. Overall, the vulnerability could facilitate data theft and privacy violations if left unpatched.

To mitigate CVE-2025-46282, organizations and users should promptly update Safari to version 26.2 or later and upgrade macOS to Tahoe 26.2 or newer, where the vulnerability is fixed. Beyond patching, organizations should enforce strict local device security controls to prevent unauthorized local access, including strong endpoint protection, user account management, and limiting installation of untrusted applications. Employing application whitelisting and monitoring for suspicious local activities can reduce the risk of exploitation. User education to avoid interacting with untrusted applications or prompts is also critical, given the requirement for user interaction. Regularly auditing installed software and browser versions across the enterprise can ensure timely patch deployment. Additionally, implementing data loss prevention (DLP) solutions can help detect and block unauthorized data access or exfiltration attempts. For high-security environments, consider restricting local user privileges and employing sandboxing technologies to isolate browser processes further.