CVE-2026-32253
CriticalSummary
In versions prior to 2026.516.143833, Sunshine, a game streaming host, has a vulnerability in client-certificate authentication that can be bypassed due to improper handling of OpenSSL verification results. This allows an untrusted certificate to pass authentication and access protected HTTPS endpoints.
Risk Assessment
The organization may be exposed to unauthorized access to sensitive data, potentially leading to serious security incidents.
Recommendation
It is recommended to upgrade to version 2026.516.143833 or later to mitigate this security vulnerability.
Original NVD description (English source)
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.