CVE-2026-17886 in Chrome
Summary
by MITRE • 07/30/2026
Use after free in Enterprise in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical use-after-free condition that existed in Google Chrome versions prior to 151.0.7922.72 within the enterprise functionality of the browser. The flaw manifests as a heap corruption issue that can be exploited by remote attackers through maliciously crafted HTML content delivered via web pages. Such vulnerabilities fall under the common weakness enumeration CWE-416 which specifically addresses use-after-free conditions where memory is accessed after it has been freed, creating opportunities for arbitrary code execution or system compromise.
The technical implementation of this vulnerability occurs within Chrome's enterprise management features, which are designed to provide administrative control over browser behavior in organizational environments. When processing specially crafted HTML content, the browser fails to properly manage memory references, leading to situations where freed memory blocks are still accessed by subsequent operations. This memory management failure creates a predictable exploitation vector for remote attackers who can construct malicious web pages that trigger the vulnerable code path during normal browsing operations.
The operational impact of this vulnerability extends beyond simple browser instability, as it provides adversaries with opportunities to execute arbitrary code on affected systems with the privileges of the Chrome process. Attackers could leverage this weakness to establish persistent access, escalate privileges, or deploy additional malware payloads. The medium severity classification according to Chromium security standards reflects the complexity required to achieve successful exploitation, though the potential for remote code execution makes this a significant concern for enterprise environments where Chrome is widely deployed.
Organizations should prioritize immediate patching of affected Chrome versions to address this heap corruption vulnerability. Additionally, implementing network-based protections such as web application firewalls and content filtering solutions can provide additional defense-in-depth layers. Security teams should monitor for indicators of compromise related to this vulnerability through endpoint detection and response systems, paying particular attention to unusual memory access patterns or unexpected process behavior on systems running vulnerable Chrome versions. The remediation approach should include comprehensive browser update management procedures and regular security assessments to prevent similar vulnerabilities from persisting in enterprise environments.
This vulnerability demonstrates the importance of proper memory management practices within complex browser applications and highlights the need for rigorous code review processes. The attack surface expands significantly when enterprise features are involved, as these components often have elevated privileges and access to system resources beyond standard browsing operations. Organizations should maintain updated threat intelligence feeds specifically focused on browser-based vulnerabilities to ensure rapid response capabilities when similar issues are discovered in their environments.
The exploitation of use-after-free conditions in web browsers represents a well-documented attack pattern that aligns with techniques described in the attack tree framework, particularly those involving memory corruption exploits. Security professionals should consider this vulnerability within the broader context of browser security hardening efforts and implement comprehensive mitigation strategies that address both the immediate threat and potential related vulnerabilities in similar components. Regular security awareness training for users about avoiding suspicious web content remains essential even when technical patches are applied.