Resource exhaustion in LINE Client for iOS - CVE-2026-3861
Published: July 13, 2026
Vulnerability identifier: #VU137370
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3861
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trick a victim to open a specially crafted web page, trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
LINE Client for iOS
How to mitigate CVE-2026-3861
Install updates from vendor's website.
LINE Client for iOS - update to 26.3.0