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CVE-2026-4446 is a high-severity use-after-free vulnerability in the WebRTC component of Google Chrome. A memory lifetime error in WebRTC can leave a dangling reference to an object after it has been freed, creating a condition where subsequent access may corrupt heap memory. Google states that affected Chrome versions prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption by convincing a user to load a crafted HTML page. The flaw affects Chromium-derived browsers that incorporate the vulnerable code until they receive the corresponding upstream fix.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A prior Chrome WebRTC use-after-free vulnerability referenced for historical comparison.
A high-severity use-after-free vulnerability in Chrome's WebRTC component.
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.