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CVE-2026-87447 is a high-severity incorrect-authorization vulnerability in the Network component of Google Chrome prior to version 153.0.8010.36. A remote attacker can use a crafted Chrome extension, together with social engineering, to bypass the browser web origin policy.
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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.
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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 incorrect-authorization vulnerability in Google Chrome's Network component prior to version 153.0.8010.36. A remote attacker who convinces a user to use a crafted Chrome extension can bypass the web origin policy.
A vulnerability tracked as CVE-2026-87447 affecting Debian Linux versions 12.0, 13.0, and 14.0. The supplied record provides CVSS vectors but does not describe the underlying technical flaw.
Authorization flaw in Chrome Network.
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.