Use-after-free in Google Chrome WebCodecs
CVE-2026-11683 is a high-severity use-after-free vulnerability in the WebCodecs component of Google Chrome affecting versions prior to 149.0.7827.103. According to the provided content, the flaw can be triggered by a crafted HTML page and results in arbitrary code execution inside the Chrome sandbox. No specific vulnerable function or code path was provided in the available material.
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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.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in WebCodecs in Google Chrome that allows a remote attacker to execute arbitrary code inside the browser sandbox via a crafted HTML page.
A high-severity use-after-free vulnerability in Chrome WebCodecs.
The version that knows your environment.
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.