CVE-2026-11148 in Chrome
Summary
by MITRE • 06/05/2026
Inappropriate implementation in Payments in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 06/05/2026
This vulnerability represents a cross-origin data leakage issue within the payments functionality of google chrome on android systems. the flaw stems from an inadequate implementation of security controls that should prevent unauthorized data access across different origins. the vulnerability specifically affects versions prior to 149.0.7827.53 and enables local attackers to exploit this weakness through carefully crafted html pages that can extract sensitive information from other origins. the technical nature of this vulnerability aligns with common web security patterns where insufficient origin validation or cross-origin resource sharing controls create attack vectors for data exfiltration. the medium severity classification indicates that while the vulnerability does not directly enable arbitrary code execution or complete system compromise, it represents a significant privacy and data protection concern that could allow attackers to gather sensitive user information.
the operational impact of this vulnerability extends beyond simple data leakage as it undermines the fundamental security model that web browsers implement to protect user privacy and data integrity. when a local attacker can craft html pages that successfully exploit this flaw, they gain the ability to access cross-origin payment information, potentially including transaction details, user credentials, or other sensitive financial data. this represents a direct violation of the same-origin policy that browsers enforce to prevent unauthorized access between different web domains. the vulnerability's classification under chromium security severity as medium suggests that while not immediately catastrophic, it represents a substantial risk to user privacy and could enable more sophisticated attacks when combined with other vulnerabilities or attack vectors. from an attack perspective, this flaw demonstrates the ongoing challenges in implementing robust cross-origin security controls within complex browser environments where multiple subsystems interact with each other.
the implementation of proper mitigations for this vulnerability requires addressing the root cause of the insecure cross-origin data handling within the payments module. organizations should immediately update to chrome version 149.0.7827.53 or later where the vulnerability has been patched. the fix likely involves strengthening the origin validation mechanisms within the payments subsystem to ensure that data access is properly restricted based on origin policies. security teams should also implement network monitoring to detect potential exploitation attempts and conduct thorough security assessments of payment-related web applications. the vulnerability highlights the importance of maintaining up-to-date browser software and implementing comprehensive security controls that protect against cross-origin attacks. from a compliance perspective, this type of vulnerability could potentially violate various data protection regulations including gdpr, pci dss, and other privacy frameworks that require organizations to implement adequate security controls to protect sensitive user information. the attack surface for this vulnerability is particularly concerning in mobile environments where users may be less aware of security updates and where the attack vectors can be more easily exploited through malicious web content.
this vulnerability demonstrates the complexity of modern browser security where even specialized modules like payments functionality can contain implementation flaws that create security risks. the flaw likely involves inadequate input validation or insufficient sandboxing of payment-related components that allows cross-origin data access. from a threat modeling perspective, this vulnerability could be categorized under attack techniques that involve information gathering and data exfiltration. the security implications extend to potential credential theft, financial data compromise, and privacy violations that could affect both individual users and organizations processing payment information. organizations should conduct comprehensive security reviews of their payment processing systems and ensure that all browser-based payment interfaces are properly secured against cross-origin attacks. the vulnerability also underscores the importance of continuous security monitoring and rapid patch deployment processes to address security flaws before they can be exploited in the wild.