What’s Vulnerable › Vulnerabilities
CVE-2026-50544: NortheBridge/luminalshine has Incorrect Permission Assignment for Critical Resource and Creation of Temporary File in Directory with Insecure Permissions
- Severity: medium (CVSS 6.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-13 · updated 2026-10-24
- Weakness: CWE-379
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: before 26.05.0-rc4
References
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