CVE-2026-3861

Medium

Description

LINE client for iOS versions prior to 26.3.0 contains a vulnerability in the in-app browser where opening a crafted web page can repeatedly trigger OS-level dialogs due to insufficient safeguards when handling arbitrary URL schemes, potentially causing the iOS device to become temporarily inoperable.

SeverityMedium
CVSS6.5
Exploit probability—
ProductLine
PublishedApr 16, 2026
First seenApr 16, 2026

How to fix

Update
  • linecorp line26.3.0 or later

Affected products

ProductAffected versionsFixed in
linecorp linev < 26.3.026.3.0

Check your version

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