EUVD-2026-65987
GHSA-2j44-8fcf-fvqp
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Remotely reachable via a crafted extension but requires user interaction to install it (UI:R); sandbox escape crosses a trust boundary (S:C) yielding full C/I/A impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Network in Google Chrome on on Mac prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Sandbox-escaping remote code execution affects Google Chrome on macOS prior to 152.0.7977.65, where a use-after-free in the Network component lets a remote attacker who convinces a victim to install a crafted extension run arbitrary code outside the renderer sandbox. Google rates the Chromium severity Medium, but the CVSS 9.6 reflects the scope-changing sandbox escape. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to be persuaded via social engineering to install a specifically crafted Chrome extension - that installed, attacker-controlled extension is the concrete prerequisite named in the description. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are notably mixed and should be reconciled before prioritization. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker social-engineers a target into installing a malicious Chrome extension from outside the Web Store, then the extension triggers the use-after-free in the Network component to corrupt heap memory. Successful exploitation executes attacker code in the higher-privileged browser process, escaping the renderer sandbox on the victim's Mac. … |
| Remediation | Vendor-released patch: update Google Chrome to 152.0.7977.65 or later on macOS via the Stable channel, per the Chrome Releases advisory (https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html); restart the browser to complete the update since Chrome patches only apply after a relaunch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Chrome browser versions across all macOS endpoints and prepare patches for version 152.0.7977.65 or later through your software deployment mechanism; conduct a pilot update in a non-critical group if standard policy requires testing. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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