CVE-2026-15116 in Chrome
Summary
by MITRE • 07/09/2026
Use after free in Actor in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 07/09/2026
This vulnerability represents a critical use-after-free condition within the actor subsystem of google chrome browser that existed prior to version 150.0.7871.115. The flaw occurs when the browser processes maliciously crafted html content that triggers improper memory management during object lifecycle handling. The vulnerability is classified as high severity according to chromium security standards and represents a significant threat to sandboxed execution environments.
The technical implementation of this vulnerability stems from inadequate memory deallocation handling within the actor framework where objects are freed from memory but references to them persist in memory structures. When an attacker crafts specific html content that exploits this condition, the browser may attempt to access memory locations that have already been released, leading to undefined behavior. This use-after-free scenario creates opportunities for memory corruption that can be leveraged to execute arbitrary code within the sandboxed environment.
The operational impact of this vulnerability extends beyond traditional privilege escalation attacks as it specifically targets the browser's security sandbox mechanisms. Attackers can construct malicious web pages that, when loaded in chrome, trigger the vulnerable code path and subsequently execute payload code with the privileges of the browser process. This represents a sophisticated attack vector that bypasses traditional security boundaries while operating within the confines of legitimate browser functionality.
The vulnerability aligns with several cwes including cwe-416 use after free and cwe-787 out of bounds read, demonstrating how improper memory management can create exploitable conditions in modern browsers. From an att&ck perspective this maps to techniques involving code injection and privilege escalation within application contexts where sandbox boundaries are intended to provide security isolation. The attack surface is particularly concerning as it leverages legitimate browser features while exploiting implementation flaws in the underlying memory management subsystem.
Mitigation strategies should focus on immediate patching of affected chrome versions to version 150.0.7871.115 or later where the vulnerability has been addressed. Organizations should implement comprehensive browser security policies that include automatic update mechanisms and regular security assessments. Additionally, network-based protections such as web application firewalls and content filtering systems can provide additional layers of defense against exploitation attempts. Regular security monitoring and incident response procedures should be established to detect and respond to potential exploitation attempts targeting this vulnerability class.