What’s Vulnerable › Vulnerabilities
CVE-2026-3861
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-16 · updated 2026-10-26
- Weakness: CWE-451
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.
Affected products
- LINE Corporation LINE client for iOS: before 26.3.0 — fixed in 26.3.0
How to fix
Upgrade to a fixed version: LINE Corporation LINE client for iOS 26.3.0. Check the vendor advisory for mitigations.
References
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