VulnerabilityPublished 13 Jul 2026

Denial-of-service (DoS) vulnerability in the in-app browser of LINE client for iOS

Source JVN Japan

Severity

Medium

Rated Medium by Threat Radar from the JVN Japan text

Data as of 4 Aug 2026, 13:29 UTC

What to do

AI-suggested

Until an official fix is available, users should exercise caution when interacting with untrusted URLs within the LINE app's in-app browser.

Description

A denial-of-service (DoS) vulnerability exists in the in-app browser of the LINE client for iOS. The issue arises from insufficient safeguards when handling arbitrary URL schemes, which may cause the application to become unresponsive or crash. No specific affected versions or patches have been identified in the provided data. There is no evidence of active exploitation in the wild at this time.

Impact

Successful exploitation of this vulnerability may result in a denial-of-service condition, causing the LINE client on iOS devices to crash or become unresponsive. This disrupts normal application usage but does not indicate data compromise or privilege escalation based on the available information.

Summary

The LINE client for iOS, developed by LY Corporation, contains a vulnerability in its in-app browser component. This vulnerability is due to inadequate handling of arbitrary URL schemes, which can lead to a denial-of-service condition by causing the app to crash or become unresponsive. The vulnerability does not have a CVSS score or detailed technical exploit information available.

References

jvn.jp/en/vu/JVNVU94039788/ (opens in a new tab)

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Description

AI analysisMachine-generated, updated 4 Aug 2026, 13:29 UTC

References

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