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TI-2026-03344 Aliases CVE-2026-3861GHSA-rc35-963c-p69f

LINE client for iOS versions prior to 26.3.0 contains a vulnerability in the in-app…

Priority LOW 31CWE-451Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-451.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00305 23rd percentileScored 2026-11-07
Fix Fixed LINE client for iOS (LY Corporation): 26.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LY CorporationLINE client for iOS—26.3.0Patch availableCNA
  • LINE client for iOS VendorLY Corporation Affected — Fixed in 26.3.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linecorp:line:*:*:*:*:*:iphone_os:*:*before 26.3.0VulnerableLinecorp
  • cpe:2.3:a:linecorp:line:*:*:*:*:*:iphone_os:*:* Versions before 26.3.0 Vulnerable ·Linecorp

Remediation

  • Fix · CNA LINE client for iOS (LY Corporation) Fixed in 26.3.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3861
  2. 2026-10-03 Alias added: GHSA-rc35-963c-p69f

References

Other 1

  • TI-2026-10143 Hard-coded credentials in LY Corporation Central Dogma CVSS 4.0CRITICAL 9.4
  • TI-2026-10142 A vulnerability has been identified in centraldogma-server-mirror-git versions prior to… CVSS 4.0HIGH 8.8
  • TI-2026-10145 LDAP injection in LY Corporation Central Dogma CVSS 4.0MEDIUM 6.9
  • TI-2026-14054 A code injection vulnerability exists in the LINE Android app prior to version 26.7.2. CVSS 4.0HIGH 8.7
  • TI-2026-10146 A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS… CVSS 4.0CRITICAL 9.1
  • TI-2026-85778 Excessive memory allocation in Armeria from malformed Thrift messages CVSS 4.0HIGH 8.7
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences