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CVE-2026-5276 is a high-severity information disclosure vulnerability in the WebUSB component of Google Chrome caused by insufficient policy enforcement. In affected versions prior to 146.0.7680.178, a remote attacker can use a crafted HTML page to trigger improper enforcement of WebUSB security restrictions and obtain potentially sensitive information from process memory. Available information identifies the flaw class and affected component, but does not provide public detail about the exact vulnerable function or code path.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An insufficient policy enforcement vulnerability in Chrome's WebUSB component.
An insufficient policy enforcement vulnerability in Chrome WebUSB component patched in this release.
A high-severity insufficient policy enforcement 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.