CVE-2026-116679 Neko: Authorization bypass in legacy WebRTC input handling
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-116679?
CVE-2026-116679 is a medium-severity vulnerability in m1k1o neko, published on 27 Oct 2026.
Official description
Neko is a a self-hosted virtual browser that runs in Docker and uses WebRTC. From version 3.0.0 until 3.1.5, Neko deployments with legacy mode and session.implicit_hosting enabled incorrectly authorize legacy WebRTC data-channel input because LegacyIsHost() evaluates host status incorrectly. An authenticated room member who establishes a WebRTC connection can send mouse and keyboard events through the legacy control channel while controls are locked or the member is otherwise unauthorized by the modern control API. This issue is fixed in version 3.1.5.
Weakness: CWE-863
Which versions are affected by CVE-2026-116679?
2 open source packages ship an affected version, including github.com/m1k1o/neko/server.
| Package | Affected | Fixed in |
|---|---|---|
github.com/m1k1o/neko/server Go | From 0.0.0-20250401220545-fe94c999c6af | 0.0.0-20260805142851-395ca1a6f62b |
github.com/m1k1o/neko/server Go | From 0.0.0-20250401220545-fe94c999c6af | 0.0.0-20260805142851-395ca1a6f62b |
How do I fix CVE-2026-116679?
Upgrade github.com/m1k1o/neko/server to 0.0.0-20260805142851-395ca1a6f62b or later.
Is CVE-2026-116679 being exploited?
There is no known exploitation of CVE-2026-116679 in the wild and no public exploit code.
Sources
Also known as GHSA-5cp7-fp4j-wwcv.