CVE-2026-16881: LINE Android code injection in profile rendering

CVE-2026-16881 · Severity: info · CVSS 8.7 · Published 2026-08-04

The LINE Android messaging app contains a vulnerability in how it displays user profiles. An attacker can inject malicious code into a profile that executes when victims view it, potentially stealing personal data or performing actions on their behalf. LINE has deployed a server-side fix to protect users even if they haven't updated the app.

Quick answers

Is CVE-2026-16881 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-16881 being exploited in the wild.
How severe is CVE-2026-16881?
Informational severity, with a CVSS score of 8.7, published 4 August 2026.
Which products and versions are affected?
LINE LINE before 26.7.2.
Is there a fix for CVE-2026-16881?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-16881 attacked?
It is attacked over the network.
Am I affected by CVE-2026-16881?
Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a code injection flaw in the profile rendering component of the LINE Android app (versions prior to 26.7.2). The component fails to adequately validate or sandbox externally supplied script content embedded in profile templates. An attacker with the ability to inject crafted content into a profile can cause arbitrary code to execute with the application's privileges when a victim views that profile. The attack requires network reachability and user interaction (viewing a malicious profile) but no authentication. A server-side mitigation has been deployed that protects unpatched clients.

Affected products

  • LINE LINE before 26.7.2

Timeline

  • 2026-08-04: disclosed

References

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