CVE-2026-50544CWE-379CWE-732

CVE-2026-50544

Medium · published August 13, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
2.0
In the wild
Unconfirmed
What it is

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`.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00125 · 2.0th percentile
Weaknesses
CWE-379 · Creation of Temporary File in Directory with Insecure Permissions; CWE-732 · Incorrect Permission Assignment for Critical Resource
Published
2026-08-13T04:17Z
References (1)
EPSS history
Timeline
  • 12 AUG 23:18Z
    NortheBridge/luminalshine has Incorrect Permission Assignment for Critical Resource and Creation of Temporary File in Directory with Insecure Permissions
    cvelistv5