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.
Published: 2026-04-16
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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References
Link Providers
https://hackerone.com/reports/3422905 cve-icon cve-icon
History

Thu, 30 Apr 2026 14:30:00 +0000

Type Values Removed Values Added
Title Repeated OS Dialog Trigger Causing Temporary iOS Device Inoperability via LINE In‑App Browser

Thu, 30 Apr 2026 11:15:00 +0000

Type Values Removed Values Added
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, potentially causing the iOS device to become temporarily inoperable. 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.
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L'}

Fri, 17 Apr 2026 05:15:00 +0000

Type Values Removed Values Added
Title iOS Device Denial of Service via Repeated OS Dialogs in LINE In‑App Browser
Weaknesses CWE-835

Thu, 16 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-451
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 16 Apr 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Line Corporation
Line Corporation line Client For Ios
Vendors & Products Line Corporation
Line Corporation line Client For Ios

Thu, 16 Apr 2026 09:15:00 +0000

Type Values Removed Values Added
Title iOS Device Denial of Service via Repeated OS Dialogs in LINE In‑App Browser
Weaknesses CWE-835

Thu, 16 Apr 2026 06:30:00 +0000

Type Values Removed Values Added
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, potentially causing the iOS device to become temporarily inoperable.
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Subscriptions

Line Corporation Line Client For Ios
cve-icon MITRE

Status: PUBLISHED

Assigner: LY-Corporation

Published:

Updated: 2026-05-12T00:54:07.069Z

Reserved: 2026-03-10T05:02:39.735Z

Link: CVE-2026-3861

cve-icon Vulnrichment

Updated: 2026-04-16T12:16:07.683Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-16T07:16:30.090

Modified: 2026-04-30T11:16:21.213

Link: CVE-2026-3861

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-30T14:15:40Z

Weaknesses