CVE-2026-15777 in Chrome
Summary
by MITRE • 07/15/2026
Use after free in UI in Google Chrome on Linux prior to 150.0.7871.125 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 07/15/2026
This vulnerability represents a critical use-after-free condition within the user interface component of Google Chrome on Linux systems, specifically affecting versions prior to 150.0.7871.125. The flaw manifests as a heap corruption issue that can be exploited remotely through a maliciously crafted HTML page, requiring only user interaction to trigger the vulnerable code path. The vulnerability is classified as high severity by Chromium security standards, indicating significant potential for exploitation in real-world scenarios.
The technical nature of this use-after-free vulnerability occurs when the browser's UI component attempts to access memory that has already been freed during normal program execution flow. This particular flaw exists within Chrome's Linux implementation where specific user interface gestures can trigger the problematic code sequence. When a user visits a malicious webpage and performs certain UI interactions, the application fails to properly manage memory references, allowing an attacker to manipulate heap memory structures through carefully constructed HTML content.
The operational impact of this vulnerability extends beyond simple memory corruption, as it provides potential attack vectors for remote code execution in the context of the browser process. Attackers can leverage this flaw by crafting HTML pages that trigger specific UI behaviors, potentially leading to arbitrary code execution with the privileges of the Chrome user. The requirement for user interaction through specific UI gestures suggests a social engineering component but reduces the attack surface compared to fully automated exploits. This vulnerability affects all Linux platforms where Chrome is installed and represents a significant concern for users who frequently browse untrusted websites.
Mitigation strategies should prioritize immediate patching of affected Chrome versions to 150.0.7871.125 or later, as this resolves the underlying heap management issue in the UI component. System administrators should implement browser hardening measures including enabling sandboxing features, restricting unnecessary UI gestures, and deploying content security policies that limit script execution from untrusted sources. Additionally, organizations should consider implementing network-based protections such as web application firewalls and monitoring for suspicious HTML content patterns that might indicate exploitation attempts. This vulnerability aligns with CWE-416 which specifically addresses use-after-free errors in memory management, and represents a potential entry point for attackers following techniques outlined in the attack pattern taxonomy under the broader category of heap overflow exploits.