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CVE WatchJul 8, 2026

CVE-2026-3861

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

CVSS

6.5

Medium

EPSS

0.3%

p23

KEV

—

Exploit Today

7

0-100

Published: Apr 16, 2026 · Last modified: Jul 8, 2026 · CWE-451

EPSS · 30d
0.3%EPSS · 30 days0.3%
2026-08-132026-09-09
Technical 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.

Official references
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