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CVE-2026-15108 is a high-severity integer overflow vulnerability in the Google Chrome Extensions API affecting Google Chrome versions prior to 150.0.7871.115. The flaw can be triggered through a crafted Chrome extension and, if a user is convinced to install the malicious extension, may cause an out-of-bounds memory read. The issue arises from improper handling of integer arithmetic within extension-related processing, allowing attacker-controlled values to wrap or truncate and subsequently influence memory access beyond intended bounds. This can undermine browser integrity and expose process memory to unauthorized reading.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity integer overflow vulnerability in Chrome's Extensions API that could compromise browser integrity.
A high-severity integer overflow vulnerability in Chrome's Extensions API.
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.