Side-channel information leakage in Google Chrome V8
CVE-2025-10890 is a high-severity information disclosure vulnerability in the V8 JavaScript engine used by Google Chrome. According to the provided content, the flaw is a side-channel information leak that affects Chrome versions prior to 140.0.7339.207, with Windows and Mac patched in 140.0.7339.207/.208 and Linux patched in 140.0.7339.207. A remote attacker can exploit the issue by serving a crafted HTML page and inducing a victim to open it in a vulnerable Chrome instance. Successful exploitation allows leakage of sensitive cross-origin data via side-channel techniques. The content does not identify a specific vulnerable function or code path within V8.
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Impact, mitigation & remediation
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Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
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Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A side-channel information disclosure vulnerability in the V8 component of Google Chrome that can allow a remote attacker to access sensitive information via a specially crafted web page.
A side-channel information leakage vulnerability in Chrome's V8 engine that could allow attackers to infer sensitive information.
Referenced as another recent high-severity vulnerability affecting Google Chrome's V8 engine, but no further details are provided in the content.
A high-severity side-channel information leakage vulnerability in Chrome's V8 engine.
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.