# CVE-2026-16881: Code injection in LINE client for Android

> An attacker can execute arbitrary code with application privileges by placing crafted content in a profile viewed by a victim.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Aug 2026
- **Updated:** 4 Aug 2026
- **Also known as:** GHSA-86g4-8jpx-6pgq

## What is CVE-2026-16881?

CVE-2026-16881 is a high-severity code injection vulnerability in LY Corporation LINE client for Android, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A code injection vulnerability exists in the LINE Android app prior to version 26.7.2. 

The profile rendering component does not adequately validate or sandbox externally supplied script content embedded in profile templates. 

As a result, an attacker who is able to place crafted content in a profile could cause unintended code to execute with the application's privileges when a victim views that profile. 

A server-side mitigation has been deployed that also protects existing Android clients that have not been updated to version 26.7.2.

## Which versions are affected by CVE-2026-16881?


## How do I fix CVE-2026-16881?

No fix has been published for CVE-2026-16881 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16881 being exploited?

There is no known exploitation of CVE-2026-16881 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16881 and fix it if it is affected.

What it is: CVE-2026-16881 is a high-severity code injection vulnerability in LY Corporation LINE client for Android, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-16881 in the wild and no public exploit code.

Affected product: LY Corporation LINE client for Android. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-16881/ (Markdown: https://insights.sbomify.com/CVE-2026-16881/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16881
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16881
- OSV: https://osv.dev/vulnerability/CVE-2026-16881

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16881/
Summaries are generated and may contain mistakes; the official description above is the record.