CVE-2026-79232 Overview
CVE-2026-79232 is a use-after-free vulnerability in the Aura component of Google Chrome. The flaw affects Chrome versions prior to 152.0.7977.65. A remote attacker can exploit the issue by serving a crafted HTML page to a targeted user. Successful exploitation may lead to arbitrary code execution outside the Chrome sandbox.
The vulnerability is tracked under CWE-416 (Use After Free) and requires user interaction, such as visiting an attacker-controlled web page. Google rates the Chromium security severity as High.
Critical Impact
Remote attackers can execute arbitrary code outside the Chrome sandbox through a crafted HTML page, breaking a core browser isolation boundary.
Affected Products
- Google Chrome for Desktop versions prior to 152.0.7977.65
- Chromium-based browsers using the affected Aura windowing framework
- Downstream distributions bundling vulnerable Chromium builds
Discovery Timeline
- 2026-08-25 - CVE-2026-79232 published to the National Vulnerability Database (NVD)
- 2026-08-27 - Last updated in NVD database
Technical Details for CVE-2026-79232
Vulnerability Analysis
The vulnerability resides in Aura, the cross-platform windowing and UI framework used by Chrome for rendering and event handling on desktop platforms. A use-after-free condition occurs when Aura code accesses a heap object after the object has been freed. An attacker who controls the allocation and freeing sequence can place attacker-influenced data in the reclaimed memory region.
Because Aura executes in the browser process, exploitation does not require a prior renderer compromise or a separate sandbox escape chain. A crafted HTML page can trigger the required object lifetime confusion through DOM interactions, window state changes, or input events that reach Aura. This positioning is what allows the flaw to yield code execution outside the sandbox.
Root Cause
The root cause is improper object lifetime management in Aura. A reference or raw pointer continues to be used after the underlying object has been released, violating memory safety guarantees. Use-after-free bugs of this class typically stem from missing weak references, incorrect callback ordering, or reentrancy during event dispatch.
Attack Vector
Exploitation requires the victim to load a malicious HTML page in a vulnerable Chrome build. The attack proceeds over the network without authentication but requires user interaction. Because Aura runs in the browser process, a successful primitive can bypass the renderer sandbox and reach a scope with broader operating-system privileges.
No verified public proof-of-concept is available. See the Chromium Issue Tracker Entry and the Google Chrome Stable Update announcement for vendor detail.
Detection Methods for CVE-2026-79232
Indicators of Compromise
- Chrome browser process (chrome.exe, Google Chrome Helper) crashing with access-violation or heap-corruption signatures shortly after visiting an unfamiliar page
- Unexpected child processes spawned by the Chrome browser process, particularly command interpreters or script hosts
- Outbound connections from the Chrome browser process to previously unseen infrastructure following browsing activity
Detection Strategies
- Inventory installed Chrome versions across the estate and flag any build below 152.0.7977.65
- Alert on browser-process crash telemetry that includes UAF-consistent stack frames within Aura components
- Correlate suspicious HTML page loads with subsequent process-creation or file-write activity attributed to the Chrome browser process
Monitoring Recommendations
- Ingest endpoint process, network, and crash-report telemetry into a central data lake to enable retrospective hunts across browser activity
- Track Chrome auto-update status and surface hosts that fail to update within the vendor's release window
- Monitor for lateral movement or credential access originating from user endpoints immediately after web browsing sessions
How to Mitigate CVE-2026-79232
Immediate Actions Required
- Update Google Chrome to version 152.0.7977.65 or later on all Windows, macOS, and Linux endpoints
- Restart the browser after the update so the patched binary is loaded into memory
- Audit managed Chromium-based browsers for downstream builds that incorporate the fix
Patch Information
Google addressed the vulnerability in the Chrome Stable channel release 152.0.7977.65. Refer to the Google Chrome Stable Update announcement for release details and the Chromium Issue Tracker Entry for the underlying bug reference. Enterprises using managed Chrome deployments should validate that update policies are enforcing the target version.
Workarounds
- Restrict browsing to trusted sites through enterprise URL filtering until patched builds are deployed
- Enforce the principle of least privilege on user accounts to limit the scope of post-exploitation activity
- Where feasible, use site isolation and strict enterprise policy settings to reduce exposure to untrusted content
# Verify installed Chrome version on Linux endpoints
google-chrome --version
# Windows: check version via registry
reg query "HKLM\SOFTWARE\Google\Chrome\BLBeacon" /v version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
