Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Aura in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Sandbox escape in Google Chrome versions prior to 148.0.7778.96 enables remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox through a use-after-free vulnerability in the Aura UI framework. The attack requires user interaction with a malicious webpage and presents high attack complexity, but successfully chains renderer compromise with sandbox escape to achieve full system impact. No active exploitation confirmed (not in CISA KEV), though this vulnerability class is frequently targeted given Chrome's wide deployment and the high value of sandbox escapes.
Technical ContextAI
The vulnerability exists in Aura, Google Chrome's cross-platform UI framework used for window management and compositing on Windows and Linux. A use-after-free (CWE-416) occurs when code attempts to access memory after it has been freed, creating a window where an attacker can manipulate the freed memory region before reuse. In Chrome's multi-process architecture, the renderer process handles untrusted web content in a restricted sandbox, while privileged operations occur in the browser process. This vulnerability allows an attacker who has already achieved arbitrary code execution within the sandboxed renderer (through a separate exploit) to escape that sandbox by triggering the use-after-free in Aura's UI handling code, potentially gaining browser process privileges. The CVSS Scope:Changed metric indicates the vulnerability crosses trust boundaries-specifically from the sandboxed renderer to the privileged browser context.
RemediationAI
Immediately upgrade Google Chrome to version 148.0.7778.96 or later through Chrome's built-in updater (Settings → About Chrome) or via enterprise deployment tools. The patch addresses the use-after-free condition in Aura's memory management. Chrome typically auto-updates within 24-48 hours of release, but manual update verification is recommended for critical environments. Google's stable channel update announcement at chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html provides official release details. For environments requiring delayed patching, implement defense-in-depth through enhanced user training on phishing/malicious sites, browser isolation technologies (Chromium-based enterprise browser isolation or virtual desktop infrastructure), network-layer filtering of known malicious domains, and endpoint detection with behavioral monitoring for sandbox escape attempts. Note that site isolation (enabled by default in modern Chrome) provides partial mitigation by limiting renderer compromise scope, but does not prevent exploitation if an attacker gains renderer process control. These compensating controls significantly reduce usability and performance compared to patching.
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: HighShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-27941