CVE-2026-87565 in Chrome
Summary
by MITRE • 09/09/2026
Information leak in Passwords in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker to leak sensitive information via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 09/09/2026
The vulnerability identified as an information leak within the password management subsystem of Google Chrome for Android, specifically in versions prior to 153.0.8010.36, represents a significant risk to user confidentiality and data integrity. This flaw allows a remote attacker to extract sensitive credentials by leveraging a crafted HTML page that interacts with the browser's internal mechanisms. The severity is classified as low within the Chromium security framework, yet the potential for unauthorized access remains substantial because passwords are among the most critical assets stored in modern web browsers. When users save login details, these credentials are typically encrypted and stored locally on the device. However, if an attacker can trigger specific code paths through malicious web content, they may bypass standard isolation boundaries or exploit logic errors that expose plaintext or decryptable versions of these passwords without direct user interaction beyond visiting a compromised site.
From a technical perspective, this vulnerability likely stems from improper handling of credential data during rendering or script execution phases within the browser engine. In many such cases, the issue involves cross-site scripting vectors or memory corruption bugs where sensitive data is inadvertently exposed to JavaScript contexts that should not have access to it. For instance, if an HTML page can inject scripts that query password manager APIs without proper permission checks or sandboxing enforcement, the attacker gains a foothold for exfiltration. The attack vector relies on social engineering elements such as phishing sites designed to trick users into visiting malicious URLs. Once accessed, the crafted content exploits the browser's trust in its own environment to retrieve stored passwords, potentially sending them back to an external server controlled by the adversary. This process circumvents traditional perimeter defenses because it occurs entirely within the client-side execution context of the victim’s device.
The operational impact of this vulnerability is severe for individuals and organizations relying on Chrome as their primary web browser. Compromised credentials can lead directly to account takeover, financial theft, identity fraud, or further lateral movement in enterprise environments where single sign-on solutions are prevalent. Even though the severity rating is low, indicating that exploitation may require specific conditions or limited scope, the value of stolen passwords makes this a high-impact issue for affected users. Attackers do not need physical access to the device; remote execution via web interaction suffices. This lowers the barrier to entry significantly compared to exploits requiring local privilege escalation or complex multi-stage attacks. Consequently, widespread adoption of vulnerable versions increases the attack surface considerably across millions of Android devices globally.
Mitigation strategies must prioritize immediate software updates and enhanced user awareness. The primary remediation is upgrading Google Chrome on Android to version 153.0.8010.36 or later, where these flaws have been patched by Chromium developers through rigorous code review and security testing. Organizations should enforce automatic update policies for corporate-managed devices to ensure timely patching. Additionally, users are advised to enable two-factor authentication wherever possible to reduce the utility of stolen passwords. Security awareness training can help mitigate social engineering aspects by teaching users to recognize suspicious URLs or phishing attempts that might trigger such exploits. Monitoring browser activity logs and employing content security policies on internal web applications can also provide additional layers of defense against similar information leakage vectors.
This incident aligns with Common Weakness Enumeration (CWE) categories related to sensitive data exposure, particularly CWE-200 which covers Information Exposure. It also maps to MITRE ATT&CK techniques involving collection and exfiltration over application layer protocols, specifically those leveraging browser-based attacks like T1566 or T1059 depending on the exact mechanism of script execution. Understanding these mappings helps security teams categorize similar threats within their threat intelligence frameworks and prioritize response efforts accordingly. Continuous monitoring for new vulnerabilities in widely used software components remains essential to maintaining robust cybersecurity posture against evolving web-based attack vectors.