CVE-2026-3861

Q: What is the severity of CVE-2026-3861?

CVE-2026-3861 has been classified as a high severity vulnerability due to its impact on device operability.

Q: How do I fix CVE-2026-3861?

To fix CVE-2026-3861, users should update the LINE client for iOS to version 26.3.0 or later.

Q: What type of vulnerability is CVE-2026-3861?

CVE-2026-3861 is a denial-of-service vulnerability found in the in-app browser of LINE for iOS.

Q: Can CVE-2026-3861 affect other iOS applications?

No, CVE-2026-3861 specifically affects the LINE client for iOS and its in-app browser.

Q: What devices are affected by CVE-2026-3861?

CVE-2026-3861 affects iOS devices running LINE client versions prior to 26.3.0.

Published Apr 16, 2026

Updated

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 Software

1 affected component

LINE LINE for iOS<26.3.0

Event History

Apr 16, 2026

CVE Published

via MITRE·05:54 AM

Data Sourced

via MITRE·05:54 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·07:16 AM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2026-3861?

CVE-2026-3861 has been classified as a high severity vulnerability due to its impact on device operability.

How do I fix CVE-2026-3861?

To fix CVE-2026-3861, users should update the LINE client for iOS to version 26.3.0 or later.

What type of vulnerability is CVE-2026-3861?

CVE-2026-3861 is a denial-of-service vulnerability found in the in-app browser of LINE for iOS.

Can CVE-2026-3861 affect other iOS applications?

No, CVE-2026-3861 specifically affects the LINE client for iOS and its in-app browser.

What devices are affected by CVE-2026-3861?

CVE-2026-3861 affects iOS devices running LINE client versions prior to 26.3.0.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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