LizardByte Sunshine up to 2026.906.222524 certificate validation

Summaryinfo

A vulnerability identified as problematic has been detected in LizardByte Sunshine up to 2026.906.222524. Affected by this issue is some unknown functionality. Performing a manipulation results in certificate validation. This vulnerability is identified as CVE-2026-111044. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in LizardByte Sunshine up to 2026.906.222524. It has been classified as problematic. This affects some unknown functionality. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on integrity. The summary by CVE is:

Sunshine is a self-hosted game stream host for Moonlight. From 2026.329.165800 until 2026.906.222525, Sunshine accepted any client certificate that chained to a stored paired-client certificate, but it did not require the presented certificate to be the exact enabled paired identity. Certificate text was also compared without canonicalizing equivalent PEM encodings. A previously paired client that retains its private key can present an alternate certificate derived from its paired certificate and bypass the Disable control. Equivalent PEM encodings could also cause inconsistent client identity handling. A client that was never paired cannot use this issue, and removing the paired client removes its trust relationship. This issue is fixed in version 2026.906.222525.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-111044 since 10/15/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 2026.906.222525 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• LizardByte

Name

• Sunshine

Version

• 2026.906.222524

Website

• Product: https://github.com/LizardByte/Sunshine/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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