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CVE-2026-9115 is a high-severity insufficient policy enforcement vulnerability in the Service Worker component of Google Chrome. In Chrome versions prior to 148.0.7778.179, improper enforcement of browser security policy allowed a remote attacker to bypass the same-origin policy by inducing a target to load a crafted HTML page. The flaw affects the browser's handling of Service Worker security boundaries, enabling cross-origin restrictions to be applied incorrectly under attacker-controlled conditions.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity insufficient policy enforcement vulnerability in Chrome Service Worker.
A high-severity insufficient policy enforcement vulnerability in Chrome Service Worker.
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.