# CVE-2026-50544

## Summary

- **CVE ID:** CVE-2026-50544
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-379, CWE-732
- **Published:** Aug 12, 2026
- **Last Modified:** Aug 14, 2026

## Description

NortheBridge/luminalshine is a Sunshine-compatible game stream host for Moonlight. Prior to version 26.05.0-rc4, a latent gap exists on a default install, the file at `src/platform/windows/misc.cpp` lives at `C:\ProgramData\LuminalShine\config\apps.json` and is created by the `SYSTEM` service. Under Windows' default `C:\ProgramData` inheritance, that gives `BUILTIN\Users` only Read+Execute — not writable — so the canonical EoP doesn't actually trigger on a vanilla install. Version 26.05.0-rc4 contains a patch for the issue. As a workaround, use default condition DACLs for `ProgramData`.

## Affected Products

- NortheBridge — luminalshine (< 26.05.0-rc4)

## References

- [CNA](https://github.com/NortheBridge/luminalshine/security/advisories/GHSA-52q6-5x97-2747)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.09%
- **EPSS Percentile:** 0.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._