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CVE-2026-11656 is a high-severity use-after-free vulnerability in the ServiceWorker component of Google Chrome. It affects Google Chrome versions prior to 149.0.7827.103. According to the provided content, exploitation is possible via a crafted Chrome extension: an attacker must convince a user to install a malicious extension, after which the memory-safety flaw in ServiceWorker can potentially be leveraged to achieve a sandbox escape. The available material does not provide function-level root cause details beyond the use-after-free condition in ServiceWorker.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity vulnerability affecting Chrome's ServiceWorker component, mentioned as part of the broader June 2026 Chrome security update.
A use-after-free vulnerability in ServiceWorker in Google Chrome that could allow a sandbox escape if a user is convinced to install a malicious Chrome extension.
A high-severity use-after-free vulnerability in Chrome ServiceWorker.
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.