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CVE Vulnerability Details :
CVE-2026-3861
PUBLISHED
More InfoOfficial Page
Assigner-LY-Corporation
Assigner Org ID-657f3255-0560-4aed-82e4-7f579ec6acfb
View Known Exploited Vulnerability (KEV) details
Published At-16 Apr, 2026 | 05:54
Updated At-12 May, 2026 | 00:54
Rejected At-
▼CVE Numbering Authority (CNA)

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
Vendor
LY Corporation
Product
LINE client for iOS
Default Status
affected
Versions
Unaffected
  • From 26.3.0 before * (custom)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-451
Type: N/A
CWE ID: N/A
Description: CWE-451
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.07.1HIGH
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
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 7.1
Base severity: HIGH
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://hackerone.com/reports/3422905
N/A
Hyperlink: https://hackerone.com/reports/3422905
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-451CWE-451 User Interface (UI) Misrepresentation of Critical Information
Type: CWE
CWE ID: CWE-451
Description: CWE-451 User Interface (UI) Misrepresentation of Critical Information
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found