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CVE-2026-11284

CVE-2026-11284

CVSS 6.5 MEDIUMEPSS 0.2%CWE-1300CWE-203
In short

Google Chrome had a flaw that could allow attackers to leak data from other websites through specially crafted web pages, by observing performance timing information that was not properly protected.

Technical detail

A side-channel vulnerability in Chrome's PerformanceAPIs prior to v149.0.7827.53 enables cross-origin data exfiltration via timing side-channels. An attacker can craft a malicious HTML page that, when visited by a user, measures subtle performance differences to infer sensitive information from other origins. Mitigation requires browser update to v149.0.7827.53 or later.

Summary generated and translated by AI from the official description.
Side-channel information leakage in PerformanceAPIs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
Google · Chrome

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