Use-after-free in Proxy in Google Chrome
CVE-2026-11643 is a critical use-after-free vulnerability in the Proxy component of Google Chrome affecting versions prior to 149.0.7827.103. According to the provided content, improper lifetime management of an object in Proxy can be triggered by malicious network traffic, leading to access of freed memory. Successful exploitation may allow a remote attacker to achieve arbitrary code execution. The issue is classified by Chromium as Critical.
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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
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical use-after-free remote code execution vulnerability in the Proxy component of Google Chrome affecting versions prior to 149.0.7827.103.
A critical use-after-free vulnerability in Chrome Proxy handling.
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.