CVE-2026-95362 in Chrome
Summary
by MITRE • 09/29/2026
Cross-site request forgery in DevTools in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified as Cross-site request forgery within the DevTools component of Google Chrome prior to version 154.0.8037.57 represents a significant deviation from expected browser isolation boundaries. This flaw allows a remote attacker, who typically relies on social engineering tactics such as phishing or malicious web page hosting, to bypass standard web origin policies. The core technical issue lies in the improper validation of request origins when interacting with Chrome DevTools interfaces embedded within or accessible via web contexts. By crafting a specific HTML page that exploits this lack of strict same-origin policy enforcement during certain DevTool operations, an attacker can trick the browser into executing actions on behalf of a logged-in user without their explicit consent. This mechanism effectively undermines the fundamental security model designed to prevent unauthorized cross-site interactions, allowing scripts from one origin to perform state-changing requests on another trusted site where the victim is authenticated.
From an operational perspective, this vulnerability enables attackers to manipulate sensitive browser functions or trigger actions that should be restricted by default. The impact extends beyond simple data theft; it allows for potential manipulation of user settings, execution of commands within developer tools contexts, or exploitation of subsequent vulnerabilities that rely on elevated privileges granted through DevTools access. Because the attack vector involves a crafted HTML page served from an attacker-controlled domain, the success rate is heavily dependent on social engineering to lure victims into visiting the malicious site while they are authenticated to target services. This scenario highlights the persistent risk associated with browser features designed for debugging and development when exposed to untrusted web content, as these tools often possess higher privileges than standard webpage scripts.
In terms of industry classification standards, this vulnerability aligns closely with CWE-352, which describes Cross-Site Request Forgery (CSRF). The specific context involves the abuse of DevTools functionality, placing it within a niche but critical subset of web application security flaws where trusted interfaces are manipulated by untrusted sources. Furthermore, from an adversary tactics perspective as defined by MITRE ATT&CK, this exploit relates to techniques involving browser exploitation and potentially privilege escalation if the DevTools session allows access to sensitive system resources or network traffic interception capabilities that would otherwise be inaccessible. The medium severity rating assigned by Chromium reflects the balance between the complexity of the attack vector requiring user interaction and the potential for significant security policy bypass once successful execution occurs.
Mitigation strategies primarily focus on timely software updates, as Google has released version 154.0.8037.57 to address this specific flaw in the DevTools origin validation logic. Administrators should ensure that all Chrome instances are updated immediately upon availability of the patch. For users unable to update instantly, mitigating factors include disabling unnecessary browser extensions that might interact with DevTools APIs and employing strict content security policies if hosting internal applications that utilize similar debugging interfaces. Additionally, user awareness training remains critical; since social engineering is a prerequisite for this attack vector, educating personnel on recognizing suspicious links or pages can significantly reduce the likelihood of successful exploitation. Regular auditing of web application origins and ensuring robust CSRF token implementation in any custom DevTool integrations further strengthens defense against such origin bypass attempts.