# CVE-2026-76137: Yamaha VOCALOID6 missing authentication for named pipe

Source: https://junglewise.ai/threats/cve-2026-76137-yamaha-vocaloid6-missing-authentication-for-named-pipe  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-21. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-76137 · Severity: low · CVSS 3.3 · Published 2026-08-21

VOCALOID6 is Yamaha's audio synthesis software used by musicians and content creators to generate vocal performances. A flaw in the application allows any program running under the same local user account to escalate privileges by communicating with VOCALOID6 through an unprotected local named pipe, potentially granting unauthorized access to system resources.

Technologies: [Yamaha VOCALOID6 Editor](https://junglewise.ai/threats/technologies/vocaloid6-editor). Vendors: [Yamaha](https://junglewise.ai/threats/vendors/yamaha).

## Quick answers

**Is CVE-2026-76137 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76137 being exploited in the wild.

**How severe is CVE-2026-76137?** Low severity, with a CVSS score of 3.3, published 21 August 2026.

**Which products and versions are affected?** Yamaha VOCALOID6 Editor 6.13.1 and earlier.

**Is there a fix for CVE-2026-76137?** A patch was published on 2026-09-16: VOCALOID6 Editor version 6.13.3 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-76137 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-76137?** Check whether you run Yamaha VOCALOID6 Editor at an affected version. 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

This vulnerability (CVE-2026-76137) is a missing authentication flaw (CWE-306) in VOCALOID6 Editor versions 6.13.1 and earlier. The application exposes a local named pipe without proper authentication controls, allowing any process running under the same local user account to interact with it. An attacker can exploit this via the named pipe to escalate privileges or perform unauthorized operations. This requires local access and the VOCALOID6 Editor to be running; privilege escalation is possible without requiring elevated privileges initially. Yamaha released version 6.13.3 (September 16, 2026) to address this issue.

## Affected products

- Yamaha VOCALOID6 Editor 6.13.1 and earlier

## Timeline

- 2026-08-21: disclosed: Vulnerability disclosed by JPCERT/CC and NVD
- 2026-09-16: patched: VOCALOID6 Editor version 6.13.3 released

## References

- [https://jvn.jp/en/vu/JVNVU90210212/](https://jvn.jp/en/vu/JVNVU90210212/)
- [https://www.vocaloid.com/en/support/download/](https://www.vocaloid.com/en/support/download/)

## Related threats

- [Yamaha VOCALOID6 Editor XML external entity injection](https://junglewise.ai/threats/cve-2026-104679-vocaloid6-editor-provided-by-yamaha-corporation-improperly)
- [Yamaha VOCALOID6 hard-coded credentials in Editor](https://junglewise.ai/threats/cve-2026-76131-yamaha-vocaloid6-hard-coded-credentials-in-editor)