CVE-2021-21163

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CVSS 3.1

6.5 medium

EPSS

<1%p59

Published

Mar 9, 2021 (Mar 9, 2021)

Modified

Jun 17, 2026

Description

Insufficient data validation in Reader Mode in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page and a malicious server.

Vendors: google fedoraproject debian
Products: chrome, fedora, debian linux
Weakness: CWE-346
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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