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Mallory
High

Use-after-free RCE in Google Chrome Browser on Mac

IdentifiersCVE-2026-9884CWE-416· Use After Free

CVE-2026-9884 is a use-after-free vulnerability in Google Chrome Browser on macOS prior to version 148.0.7778.216. The issue affects the Browser component and can be triggered by a remote attacker via a crafted HTML page. The provided content does not identify the specific vulnerable function, but the flaw class indicates that Chrome may access memory after it has been freed, creating a memory corruption condition that can be leveraged for code execution.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows a remote attacker to execute arbitrary code on an affected macOS system in the context of the Chrome browser by inducing a user to load a maliciously crafted HTML page. As a critical memory corruption issue, this may also result in browser compromise and potentially further post-exploitation activity depending on the runtime environment and available mitigations.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or temporary mitigation is provided in the supplied content. Practical mitigation is to apply the vendor update as soon as possible and reduce exposure by limiting use of untrusted websites until patched.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on macOS to version 148.0.7778.216 or later. More generally, deploy the latest Chrome 148.0.7778.x Stable build made available by Google through standard browser or enterprise update channels.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleChromeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.