PT-2026-33270 · Line · Line Client For Ios

Published 2026-04-16 · Updated 2026-04-16 · CVE-2026-3861

Mitre

CVSS v3.1

6.5

Medium

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Fix

DoS

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-451

Related Identifiers

CVE-2026-3861

Affected Products

Line Client For Ios

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-3861 · Security Note
• https://twitter.com/VulmonFeeds/status/2044735703683137657 · Twitter Post
• https://twitter.com/CVEnew/status/2044701561864233416 · Twitter Post
• https://hackerone.com/reports/3422905 · Note