CVE-2026-32253

Sunshine is a self-hosted game stream host for Moonlight. In versions prior to 2026.516.143833, the client-certificate authentication can be bypassed because of how OpenSSL verification results are handled. In src/crypto.cpp, the custom verify callback treats X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY, X509_V_ERR_CERT_NOT_YET_VALID, and X509_V_ERR_CERT_HAS_EXPIRED as success. This can allow an untrusted certificate to pass authentication and access protected HTTPS endpoints. This issue has been fixed in version 2026.516.143833.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/LizardByte/Sunshine/releases/tag/v2026.516.143833	Product Release Notes
https://github.com/LizardByte/Sunshine/security/advisories/GHSA-ph75-mgxh-mv57	Exploit Vendor Advisory
https://github.com/LizardByte/Sunshine/security/advisories/GHSA-ph75-mgxh-mv57	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lizardbyte:sunshine:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-22 17:16

Updated : 2026-07-23 16:10

NVD link : CVE-2026-32253

Mitre link : CVE-2026-32253

CVE.ORG link : CVE-2026-32253

JSON object : View

Products Affected

lizardbyte

sunshine

CWE

CWE-287

Improper Authentication

CWE-295

Improper Certificate Validation

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