Descriptions

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, potentially causing the iOS device to become temporarily inoperable.

Severity

  • CVSSv3.1 Score: 3.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Versions

  • LINE client for iOS before 26.3.0

Fix

  • LINE should be updated to latest version.

Reference

  • https://www.cve.org/CVERecord?id=CVE-2026-3861

Updated: