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CVE-2026-8512 is a use-after-free vulnerability in Google Chrome's FileSystem component, specifically the File System Access API's macOS folder-change callback handling. The flaw involves object lifetime management during operating-system callbacks. Google Chrome versions before 148.0.7778.168 are affected. A remote attacker could potentially escape the browser sandbox using a crafted HTML page after convincing the user to perform specific UI gestures.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in Google Chrome's FileSystem component could enable a remote attacker to escape the sandbox through a crafted HTML page, requiring specific user interactions. Chromium rates it Critical; the plugin reports a CVSS v3 base score of 8.3 (High). The prescribed fix is to update Chromium and related packages to version 148.0.7778.167-1~deb12u1 or later.
A use-after-free vulnerability in Chrome's File System Access API on macOS, included in the AI patch generation study.
A use-after-free vulnerability in Chrome's File System Access API on macOS, included in the study for testing patch efficacy.
A use-after-free vulnerability in Chrome's File System Access API on macOS, selected for testing AI-generated patch quality.
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.