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CVE-2026-13778 is a critical use-after-free vulnerability in the WebUSB component of Google Chrome affecting Chrome on macOS prior to version 150.0.7871.47. The flaw arises from improper lifetime management of memory in WebUSB, allowing previously freed memory to be reused in a way that can corrupt program state. An attacker with local access can trigger the condition through a malicious USB peripheral interacting with the browser’s WebUSB functionality. Successful exploitation can lead to arbitrary code execution within the context of the Chrome process.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical use-after-free vulnerability in Chrome WebUSB.
A critical use-after-free vulnerability in Chrome WebUSB.
A critical use-after-free vulnerability in Chrome WebUSB.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.